diff --git a/README.md b/README.md
index 899cae7..8fd43e9 100644
--- a/README.md
+++ b/README.md
@@ -1,14 +1,16 @@
+
 # alexa-remote-control
 control Amazon Alexa from command Line
 
 ```
 alexa-remote-control [-d <device>|ALL] -e <pause|play|next|prev|fwd|rwd|shuffle|vol:<0-100>> |
-                    -b [<\"AA:BB:CC:DD:EE:FF\">] | -q | -r <\"station name\"|stationid> |
+                    -b [list|<\"AA:BB:CC:DD:EE:FF\">] | -q | -r <\"station name\"|stationid> |
                     -s <trackID> | -t <ASIN> | -u <seedID> | -v <queueID> | -w <playlistId> |
-                    -i | -p | -a | -P | -S | -m <multiroom_device> [device_1 .. device_X] | -l | -h
+                    -i | -p | -a | -P | -S | -m <multiroom_device> [device_1 .. device_X] |
+                     -lastalexa | -l | -h
    -e : run command
    -q : query queue
-   -b : connect/disconnect bluetooth device
+   -b : connect/disconnect/list bluetooth device
    -r : play tunein radio
    -s : play library track
    -t : play Prime playlist
@@ -21,13 +23,17 @@ alexa-remote-control [-d <device>|ALL] -e <pause|play|next|prev|fwd|rwd|shuffle|
    -S : list Prime stations
    -a : list available devices
    -m : delete multiroom and/or create new multiroom containing devices
+   -lastalexa : print device that received the last voice command
    -l : logoff
    -h : help
 ```
  
-There's also a "plain" version, which lacks some functionality (-P and -S) but doesn't need 'jq' for JSON processing.
+There's also a "plain" version, which lacks some functionality (-i, -p, -P, -S and no radio station names) but doesn't require 'jq' for JSON processing.
 
 http://blog.loetzimmer.de/2017/10/amazon-alexa-hort-auf-die-shell-echo.html
 
 
 
+
+
+
diff --git a/alexa_remote_control.sh b/alexa_remote_control.sh
index 40158e0..95e70c0 100644
--- a/alexa_remote_control.sh
+++ b/alexa_remote_control.sh
@@ -14,12 +14,24 @@
 # 2017-11-25: v0.7 added multiroom create/delete, playback of library playlist
 # 2017-11-30: v0.7a added US config, fixed device names containing spaces
 # 2017-12-07: v0.7b added Bluetooth connect/disconnect
+# 2017-12-18: v0.7c fixed US version
+# 2017-12-19: v0.7d fixed AWK csrf extraction on some systems
+# 2017-12-20: v0.7e moved get_devlist after check_status
+# 2018-01-08: v0.7f added echo-show to ALL group, TuneIn station can now be up to 6 digits
+# 2018-01-08: v0.8 added bluetooth list function
+# 2018-01-10: v0.8a abort when login was unsuccessful
+# 2018-01-25: v0.8b added echo-spot to ALL group
+# 2018-01-28: v0.8c added configurable browser string
+# 2018-02-17: v0.8d no need to write the cookie file on every "check_status"
+# 2018-02-27: v0.8e added "lastalexa" option for HA-Bridge to send its command to a specific device
+#		(Markus Wennesheimer: https://wennez.wordpress.com/light-on-with-alexa-for-each-room/)
+# 2018-02-27: v0.9 unsuccessful logins will now give a short info how to debug the login
 #
 ###
 #
 # (no BASHisms were used, should run with any shell)
 # - requires cURL for web communication
-# - sed and awk for extraction
+# - (GNU) sed and awk for extraction
 # - jq as command line JSON parser (optional for the fancy bits)
 #
 ##########################################
@@ -45,6 +57,9 @@ CURL='/usr/bin/curl'
 OPTS='--compressed'
 #OPTS='-k --compressed'
 
+# browser identity
+BROWSER='Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:58.0) Gecko/20100101 Firefox/58.0'
+
 ###########################################
 # nothing to configure below here
 #
@@ -68,13 +83,14 @@ LEMUR=""
 CHILD=""
 PLIST=""
 BLUETOOTH=""
+LASTALEXA=""
 
 usage()
 {
-	echo "$0 [-d <device>|ALL] -e <pause|play|next|prev|fwd|rwd|shuffle|vol:<0-100>> | -b [<\"AA:BB:CC:DD:EE:FF\">] | -q | -r <\"station name\"|stationid> | -s <trackID> | -t <ASIN> |"
-	echo "         -u <seedID> | -v <queueID> | -w <playlistId> | -i | -p | -P | -S | -a | -m <multiroom_device> [device_1 .. device_X] | -l | -h"
+	echo "$0 [-d <device>|ALL] -e <pause|play|next|prev|fwd|rwd|shuffle|vol:<0-100>> | -b [list|<\"AA:BB:CC:DD:EE:FF\">] | -q | -r <\"station name\"|stationid> | -s <trackID> | -t <ASIN> |"
+	echo "         -u <seedID> | -v <queueID> | -w <playlistId> | -i | -p | -P | -S | -a | -m <multiroom_device> [device_1 .. device_X] | -lastalexa | -l | -h"
 	echo "   -e : run command"
-	echo "   -b : connect/disconnect bluetooth device"
+	echo "   -b : connect/disconnect/list bluetooth device"
 	echo "   -q : query queue"
 	echo "   -r : play tunein radio"
 	echo "   -s : play library track"
@@ -88,6 +104,7 @@ usage()
 	echo "   -S : list Prime stations"
 	echo "   -a : list available devices"
 	echo "   -m : delete multiroom and/or create new multiroom containing devices"
+	echo "   -lastalexa : print device that received the last voice command"
 	echo "   -l : logoff"
 	echo "   -h : help"
 }
@@ -142,7 +159,7 @@ while [ "$#" -gt 0 ] ; do
 			STATIONID=$2
 			shift
 			# stationIDs are "s1234" or "s12345"
-			if [ -n "${STATIONID##s[0-9][0-9][0-9][0-9]}" -a -n "${STATIONID##s[0-9][0-9][0-9][0-9][0-9]}" ] ; then
+			if [ -n "${STATIONID##s[0-9][0-9][0-9][0-9]}" -a -n "${STATIONID##s[0-9][0-9][0-9][0-9][0-9]}" -a -n "${STATIONID##s[0-9][0-9][0-9][0-9][0-9][0-9]}" ] ; then
 				# search for station name
 				STATIONID=$(${CURL} ${OPTS} -s --data-urlencode "query=${STATIONID}" -G "https://api.tunein.com/profiles?fullTextSearch=true" | jq -r '.Items[] | select(.ContainerType == "Stations") | .Children[] | select( .Index==1 ) | .GuideId')
 				if [ -z "$STATIONID" ] ; then
@@ -217,6 +234,9 @@ while [ "$#" -gt 0 ] ; do
 		-q)
 			QUEUE="true"
 			;;
+		-lastalexa)
+			LASTALEXA="true"
+			;;
 		-h|-\?|--help)
 			usage
 			exit 0
@@ -292,30 +312,48 @@ rm -f ${TMP}/.alexa.*.list
 #
 # get first cookie and write redirection target into referer
 #
-${CURL} ${OPTS} -s -D "${TMP}/.alexa.header" -c ${COOKIE} -b ${COOKIE} -A "Mozilla/5.0" -H "Accept-Language: ${LANGUAGE}" -H "DNT: 1" -H "Connection: keep-alive" -H "Upgrade-Insecure-Requests: 1" -L\
+${CURL} ${OPTS} -s -D "${TMP}/.alexa.header" -c ${COOKIE} -b ${COOKIE} -A "${BROWSER}" -H "Accept-Language: ${LANGUAGE}" -H "DNT: 1" -H "Connection: keep-alive" -H "Upgrade-Insecure-Requests: 1" -L\
  https://alexa.${AMAZON} | grep "hidden" | sed 's/hidden/\n/g' | grep "value=\"" | sed -r 's/^.*name="([^"]+)".*value="([^"]+)".*/\1=\2\&/g' > "${TMP}/.alexa.postdata"
 
 #
-# login empty to generate sessiion
+# login empty to generate session
 #
-${CURL} ${OPTS} -s -c ${COOKIE} -b ${COOKIE} -A "Mozilla/5.0" -H "Accept-Language: ${LANGUAGE}" -H "DNT: 1" -H "Connection: keep-alive" -H "Upgrade-Insecure-Requests: 1" -L\
+${CURL} ${OPTS} -s -c ${COOKIE} -b ${COOKIE} -A "${BROWSER}" -H "Accept-Language: ${LANGUAGE}" -H "DNT: 1" -H "Connection: keep-alive" -H "Upgrade-Insecure-Requests: 1" -L\
  -H "$(grep 'Location: ' ${TMP}/.alexa.header | sed 's/Location: /Referer: /')" -d "@${TMP}/.alexa.postdata" https://www.${AMAZON}/ap/signin | grep "hidden" | sed 's/hidden/\n/g' | grep "value=\"" | sed -r 's/^.*name="([^"]+)".*value="([^"]+)".*/\1=\2\&/g' > "${TMP}/.alexa.postdata2"
 
 #
 # login with filled out form
 #  !!! referer now contains session in URL
 #
-${CURL} ${OPTS} -s -c ${COOKIE} -b ${COOKIE} -A "Mozilla/5.0" -H "Accept-Language: ${LANGUAGE}" -H "DNT: 1" -H "Connection: keep-alive" -H "Upgrade-Insecure-Requests: 1" -L\
- -H "Referer: https://www.${AMAZON}/ap/signin/$(awk "\$0 ~/.${AMAZON}.*session-id[\\s\\t]/ {print \$7}" ${COOKIE})" --data-urlencode "email=${EMAIL}" --data-urlencode "password=${PASSWORD}" -d "@${TMP}/.alexa.postdata2" https://www.${AMAZON}/ap/signin > /dev/null
+${CURL} ${OPTS} -s -D "${TMP}/.alexa.header2" -c ${COOKIE} -b ${COOKIE} -A "${BROWSER}" -H "Accept-Language: ${LANGUAGE}" -H "DNT: 1" -H "Connection: keep-alive" -H "Upgrade-Insecure-Requests: 1" -L\
+ -H "Referer: https://www.${AMAZON}/ap/signin/$(awk "\$0 ~/.${AMAZON}.*session-id[ \\s\\t]+/ {print \$7}" ${COOKIE})" --data-urlencode "email=${EMAIL}" --data-urlencode "password=${PASSWORD}" -d "@${TMP}/.alexa.postdata2" https://www.${AMAZON}/ap/signin > "${TMP}/.alexa.login"
+
+# check whether the login has been successful or exit otherwise
+if [ -z "$(grep 'Location: https://alexa.*html' ${TMP}/.alexa.header2)" ] ; then
+	echo "ERROR: Amazon Login was unsuccessful. Possibly you get a captcha login screen."
+	echo " Try logging in to https://alexa.${AMAZON} with your browser. In your browser"
+	echo " make sure to have all Amazon related cookies deleted and Javascript disabled!"
+	echo
+	echo " (For more information have a look at ${TMP}/.alexa.login)"
+
+	rm -f ${COOKIE}
+	rm -f "${TMP}/.alexa.header"
+	rm -f "${TMP}/.alexa.header2"
+	rm -f "${TMP}/.alexa.postdata"
+	rm -f "${TMP}/.alexa.postdata2"
+	exit 1
+fi
 
 #
 # get CSRF
 #
-${CURL} ${OPTS} -s -c ${COOKIE} -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -c ${COOKIE} -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
  https://${ALEXA}/api/language > /dev/null
 
+rm -f "${TMP}/.alexa.login"
 rm -f "${TMP}/.alexa.header"
+rm -f "${TMP}/.alexa.header2"
 rm -f "${TMP}/.alexa.postdata"
 rm -f "${TMP}/.alexa.postdata2"
 }
@@ -325,9 +363,9 @@ rm -f "${TMP}/.alexa.postdata2"
 #
 get_devlist()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})"\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})"\
  "https://${ALEXA}/api/devices-v2/device?cached=false" > ${DEVLIST}
 }
 
@@ -337,7 +375,7 @@ check_status()
 # bootstrap with GUI-Version writes GUI version to cookie
 #  returns among other the current authentication state
 #
-	AUTHSTATUS=$(${CURL} ${OPTS} -s -c ${COOKIE} -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L https://${ALEXA}/api/bootstrap?version=${GUIVERSION} | sed -r 's/^.*"authenticated":([^,]+),.*$/\1/g')
+	AUTHSTATUS=$(${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L https://${ALEXA}/api/bootstrap?version=${GUIVERSION} | sed -r 's/^.*"authenticated":([^,]+),.*$/\1/g')
 
 	if [ "$AUTHSTATUS" = "true" ] ; then
 		return 1
@@ -352,11 +390,11 @@ check_status()
 set_var()
 {
 	DEVICE=$(echo ${DEVICE} | sed -r 's/%20/ /g')
-	
+
 	if [ -z "${DEVICE}" ] ; then
 		# if no device was supplied, use the first Echo(dot) in device list
 		echo "setting default device to:"
-		DEVICE=$(jq -r '[ .devices[] | select(.deviceFamily == "ECHO" ) | .accountName] | .[0]' ${DEVLIST})
+		DEVICE=$(jq -r '[ .devices[] | select(.deviceFamily == "ECHO" or .deviceFamily == "KNIGHT" or .deviceFamily == "ROOK" ) | .accountName] | .[0]' ${DEVLIST})
 		echo ${DEVICE}
 	fi
 
@@ -383,9 +421,9 @@ list_devices()
 #
 run_cmd()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST -d ${COMMAND}\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST -d ${COMMAND}\
  "https://${ALEXA}/api/np/command?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}"
 }
 
@@ -394,9 +432,9 @@ ${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: kee
 #
 play_radio()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST\
  "https://${ALEXA}/api/tunein/queue-and-play?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}&guideId=${STATIONID}&contentType=station&callSign=&mediaOwnerCustomerId=${MEDIAOWNERCUSTOMERID}"
 }
 
@@ -405,9 +443,9 @@ ${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: kee
 #
 play_song()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST -d "{\"trackId\":\"${SONG}\",\"playQueuePrime\":true}"\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST -d "{\"trackId\":\"${SONG}\",\"playQueuePrime\":true}"\
  "https://${ALEXA}/api/cloudplayer/queue-and-play?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}&mediaOwnerCustomerId=${MEDIAOWNERCUSTOMERID}&shuffle=false"
 }
 
@@ -416,9 +454,9 @@ ${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: kee
 #
 play_playlist()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST -d "{\"playlistId\":\"${PLIST}\",\"playQueuePrime\":true}"\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST -d "{\"playlistId\":\"${PLIST}\",\"playQueuePrime\":true}"\
  "https://${ALEXA}/api/cloudplayer/queue-and-play?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}&mediaOwnerCustomerId=${MEDIAOWNERCUSTOMERID}&shuffle=false"
 }
 
@@ -427,9 +465,9 @@ ${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: kee
 #
 play_prime_playlist()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST -d "{\"asin\":\"${ASIN}\"}"\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST -d "{\"asin\":\"${ASIN}\"}"\
  "https://${ALEXA}/api/prime/prime-playlist-queue-and-play?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}&mediaOwnerCustomerId=${MEDIAOWNERCUSTOMERID}"
 }
 
@@ -438,9 +476,9 @@ ${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: kee
 #
 play_prime_station()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST -d "{\"seed\":\"{\\\"type\\\":\\\"KEY\\\",\\\"seedId\\\":\\\"${SEEDID}\\\"}\",\"stationName\":\"none\",\"seedType\":\"KEY\"}"\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST -d "{\"seed\":\"{\\\"type\\\":\\\"KEY\\\",\\\"seedId\\\":\\\"${SEEDID}\\\"}\",\"stationName\":\"none\",\"seedType\":\"KEY\"}"\
  "https://${ALEXA}/api/gotham/queue-and-play?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}&mediaOwnerCustomerId=${MEDIAOWNERCUSTOMERID}"
 }
 
@@ -449,9 +487,9 @@ ${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: kee
 #
 play_prime_hist_queue()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST -d "{\"deviceType\":\"${DEVICETYPE}\",\"deviceSerialNumber\":\"${DEVICESERIALNUMBER}\",\"mediaOwnerCustomerId\":\"${MEDIAOWNERCUSTOMERID}\",\"queueId\":\"${HIST}\",\"service\":null,\"trackSource\":\"TRACK\"}"\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST -d "{\"deviceType\":\"${DEVICETYPE}\",\"deviceSerialNumber\":\"${DEVICESERIALNUMBER}\",\"mediaOwnerCustomerId\":\"${MEDIAOWNERCUSTOMERID}\",\"queueId\":\"${HIST}\",\"service\":null,\"trackSource\":\"TRACK\"}"\
  "https://${ALEXA}/api/media/play-historical-queue"
 }
 
@@ -470,9 +508,9 @@ show_library()
 
 		while [ 50 -le ${SIZE} ] ; do
 
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X GET \
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X GET \
  "https://${ALEXA}/api/cloudplayer/playlists/${TYPE}-V0-OBJECTID?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}&size=${SIZE}&offset=${OFFSET}&mediaOwnerCustomerId=${MEDIAOWNERCUSTOMERID}" > ${FILE}.tmp
 
 			OFFSET=$(jq -r '.nextResultsToken' ${FILE}.tmp)
@@ -496,16 +534,16 @@ show_prime()
 	FILE=${TMP}/.alexa.${PRIME}.list
 
 	if [ ! -f ${FILE} ] ; then
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X GET \
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X GET \
  "https://${ALEXA}/api/prime/{$PRIME}?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}&mediaOwnerCustomerId=${MEDIAOWNERCUSTOMERID}" > ${FILE}
 
 		if [ "$PRIME" = "prime-playlist-browse-nodes" ] ; then
 			for I in $(jq -r '.primePlaylistBrowseNodeList[].subNodes[].nodeId' ${FILE} 2>/dev/null) ; do
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X GET \
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X GET \
  "https://${ALEXA}/api/prime/prime-playlists-by-browse-node?browseNodeId=${I}&deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}&mediaOwnerCustomerId=${MEDIAOWNERCUSTOMERID}" >> ${FILE}
 			done
 		fi
@@ -525,19 +563,19 @@ show_queue()
 		PARENT="&lemurId=${PARENTID}&lemurDeviceType=${PARENTDEVICE}"
 	fi
 
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X GET \
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X GET \
  "https://${ALEXA}/api/np/player?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}${PARENT}" | jq '.'
 
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X GET \
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X GET \
  "https://${ALEXA}/api/media/state?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}" | jq '.'
 
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X GET \
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X GET \
  "https://${ALEXA}/api/np/queue?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}" | jq '.'
 }
 
@@ -546,9 +584,9 @@ ${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: kee
 #
 delete_multiroom()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X DELETE \
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X DELETE \
  "https://${ALEXA}/api/lemur/tail/${DEVICESERIALNUMBER}"
 }
 
@@ -564,20 +602,31 @@ create_multiroom()
 	done
 	JSON="${JSON%,}]}"
 
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST -d "${JSON}" \
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST -d "${JSON}" \
  "https://${ALEXA}/api/lemur/tail"
 }
 
+#
+# list bluetooth devices
+#
+list_bluetooth()
+{
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
+ -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X GET \
+ "https://${ALEXA}/api/bluetooth?cached=false" | jq --arg serial "${DEVICESERIALNUMBER}" -r '.bluetoothStates[] | select(.deviceSerialNumber == $serial) | "\(.pairedDeviceList[]?.address) \(.pairedDeviceList[]?.friendlyName)"'
+}
+
 #
 # connect bluetooth device
 #
 connect_bluetooth()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST -d "{\"bluetoothDeviceAddress\":\"${BLUETOOTH}\"}"\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST -d "{\"bluetoothDeviceAddress\":\"${BLUETOOTH}\"}"\
  "https://${ALEXA}/api/bluetooth/pair-sink/${DEVICETYPE}/${DEVICESERIALNUMBER}"
 }
 
@@ -586,18 +635,32 @@ ${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: kee
 #
 disconnect_bluetooth()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST \
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST \
  "https://${ALEXA}/api/bluetooth/disconnect-sink/${DEVICETYPE}/${DEVICESERIALNUMBER}"
 }
 
+#
+# device that sent the last command
+# (by Markus Wennesheimer)
+#
+last_alexa()
+{
+${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+ -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X GET \
+ "https://${ALEXA}/api/activities?startTime=&size=1&offset=1" | jq -r '.activities[0].sourceDeviceIds[0].serialNumber' | xargs -i jq -r --arg device {} '.devices[] | select( .serialNumber == $device) | .accountName' ${DEVLIST}
+# Serial number: | jq -r '.activities[0].sourceDeviceIds[0].serialNumber'
+# Device name:   | jq -r '.activities[0].sourceDeviceIds[0].serialNumber' | xargs -i jq -r --arg device {} '.devices[] | select( .serialNumber == $device) | .accountName' ${DEVLIST}
+ }
+
 #
 # logout
 #
 log_off()
 {
-${CURL} ${OPTS} -s -c ${COOKIE} -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -c ${COOKIE} -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  https://${ALEXA}/logout > /dev/null
 
 rm -f ${DEVLIST}
@@ -605,7 +668,7 @@ rm -f ${COOKIE}
 rm -f ${TMP}/.alexa.*.list
 }
 
-if [ -z "$BLUETOOTH" -a -z "$LEMUR" -a -z "$PLIST" -a -z "$HIST" -a -z "$SEEDID" -a -z "$ASIN" -a -z "$PRIME" -a -z "$TYPE" -a -z "$QUEUE" -a -z "$LIST" -a -z "$COMMAND" -a -z "$STATIONID" -a -z "$SONG" -a -n "$LOGOFF" ] ; then
+if [ -z "$LASTALEXA" -a -z "$BLUETOOTH" -a -z "$LEMUR" -a -z "$PLIST" -a -z "$HIST" -a -z "$SEEDID" -a -z "$ASIN" -a -z "$PRIME" -a -z "$TYPE" -a -z "$QUEUE" -a -z "$LIST" -a -z "$COMMAND" -a -z "$STATIONID" -a -z "$SONG" -a -n "$LOGOFF" ] ; then
 	echo "only logout option present, logging off ..."
 	log_off
 	exit 0
@@ -628,7 +691,7 @@ if [ $? -eq 0 ] ; then
 fi
 
 if [ ! -f ${DEVLIST} ] ; then
-	echo "device list do not exist. downloading ..."
+	echo "device list does not exist. downloading ..."
 	get_devlist
 	if [ ! -f ${DEVLIST} ] ; then
 		echo "failed to download device list, aborting"
@@ -638,7 +701,7 @@ fi
 
 if [ -n "$COMMAND" -o -n "$QUEUE" ] ; then
 	if [ "${DEVICE}" = "ALL" ] ; then
-		for DEVICE in $(jq -r '.devices[] | select( .deviceFamily == "ECHO" or .deviceFamily == "WHA") | .accountName' ${DEVLIST} | sed -r 's/ /%20/g') ; do
+		for DEVICE in $(jq -r '.devices[] | select( .deviceFamily == "ECHO" or .deviceFamily == "KNIGHT" or .deviceFamily == "ROOK" or .deviceFamily == "WHA") | .accountName' ${DEVLIST} | sed -r 's/ /%20/g') ; do
 			set_var
 			if [ -n "$COMMAND" ] ; then
 				echo "sending cmd:${COMMAND} to dev:${DEVICE} type:${DEVICETYPE} serial:${DEVICESERIALNUMBER}"
@@ -677,11 +740,24 @@ elif [ -n "$LEMUR" ] ; then
 	rm -f ${DEVLIST}
 	get_devlist
 elif [ -n "$BLUETOOTH" ] ; then
-	set_var
-	if [ "$BLUETOOTH" = "null" ] ; then
+	if [ "$BLUETOOTH" = "list" -o "$BLUETOOTH" = "List" -o "$BLUETOOTH" = "LIST" ] ; then
+		if [ "${DEVICE}" = "ALL" ] ; then
+			for DEVICE in $(jq -r '.devices[] | select( .deviceFamily == "ECHO" or .deviceFamily == "KNIGHT" or .deviceFamily == "ROOK" or .deviceFamily == "WHA") | .accountName' ${DEVLIST} | sed -r 's/ /%20/g') ; do
+				set_var
+				echo "bluetooth devices for dev:${DEVICE} type:${DEVICETYPE} serial:${DEVICESERIALNUMBER}:"
+				list_bluetooth
+			done
+		else
+			set_var
+			echo "bluetooth devices for dev:${DEVICE} type:${DEVICETYPE} serial:${DEVICESERIALNUMBER}:"
+			list_bluetooth
+		fi
+	elif [ "$BLUETOOTH" = "null" ] ; then
+		set_var
 		echo "disconnecting dev:${DEVICE} type:${DEVICETYPE} serial:${DEVICESERIALNUMBER} from bluetooth"
 		disconnect_bluetooth
 	else
+		set_var
 		echo "connecting dev:${DEVICE} type:${DEVICETYPE} serial:${DEVICESERIALNUMBER} to bluetooth device:${BLUETOOTH}"
 		connect_bluetooth
 	fi
@@ -720,6 +796,8 @@ elif [ -n "$HIST" ] ; then
 	set_var
 	echo "playing PRIME historical queue ${HIST}"
 	play_prime_hist_queue
+elif [ -n "$LASTALEXA" ] ; then
+	last_alexa
 else
 	echo "no alexa command received"
 fi
diff --git a/alexa_remote_control_plain.sh b/alexa_remote_control_plain.sh
index 4c446b6..3d0c58d 100644
--- a/alexa_remote_control_plain.sh
+++ b/alexa_remote_control_plain.sh
@@ -3,13 +3,13 @@
 # Amazon Alexa Remote Control (PLAIN shell)
 #  alex(at)loetzimmer.de
 #
-# 2017-12-07: v0.7b (for updates see http://blog.loetzimmer.de/2017/10/amazon-alexa-hort-auf-die-shell-echo.html)
+# 2018-02-27: v0.9 (for updates see http://blog.loetzimmer.de/2017/10/amazon-alexa-hort-auf-die-shell-echo.html)
 #
 ###
 #
 # (no BASHisms were used, should run with any shell)
 # - requires cURL for web communication
-# - sed and awk for extraction
+# - (GNU) sed and awk for extraction
 #
 ##########################################
 
@@ -34,6 +34,9 @@ CURL='/usr/bin/curl'
 OPTS='--compressed'
 #OPTS='-k --compressed'
 
+# browser identity
+BROWSER='Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:58.0) Gecko/20100101 Firefox/58.0'
+
 ###########################################
 # nothing to configure below here
 #
@@ -57,24 +60,24 @@ LEMUR=""
 CHILD=""
 PLIST=""
 BLUETOOTH=""
+LASTALEXA=""
 
 usage()
 {
-	echo "$0 [-d <device>|ALL] -e <pause|play|next|prev|fwd|rwd|shuffle|vol:<0-100>> | -b [<\"AA:BB:CC:DD:EE:FF\">] | -q | -r <stationid> | -s <trackID> | -t <ASIN> |"
-	echo "         -u <seedID> | -v <queueID> | -w <playlistId> | -i | -p | -a | -m <multiroom_device> [device_1 .. device_X] | -l | -h"
+	echo "$0 [-d <device>] -e <pause|play|next|prev|fwd|rwd|shuffle|vol:<0-100>> | -b [list|<\"AA:BB:CC:DD:EE:FF\">] | -q | -r <stationid> | -s <trackID> | -t <ASIN> |"
+	echo "         -u <seedID> | -v <queueID> | -w <playlistId> | -a | -m <multiroom_device> [device_1 .. device_X] | -lastalexa | -l | -h"
 	echo "   -e : run command"
 	echo "   -q : query queue"
-	echo "   -b : connect/disconnect bluetooth device"
+	echo "   -b : connect/disconnect/list bluetooth device"
 	echo "   -r : play tunein radio"
 	echo "   -s : play library track"
 	echo "   -t : play Prime playlist"
 	echo "   -u : play Prime station"
 	echo "   -v : play Prime historical queue"
 	echo "   -w : play library playlist"
-	echo "   -i : list imported library tracks"
-	echo "   -p : list purchased library tracks"
 	echo "   -a : list available devices"
 	echo "   -m : delete multiroom and/or create new multiroom containing devices"
+	echo "   -lastalexa : print serial number that received the last voice command"
 	echo "   -l : logoff"
 	echo "   -h : help"
 }
@@ -192,6 +195,9 @@ while [ "$#" -gt 0 ] ; do
 		-q)
 			QUEUE="true"
 			;;
+		-lastalexa)
+			LASTALEXA="true"
+			;;
 		-h|-\?|--help)
 			usage
 			exit 0
@@ -267,30 +273,48 @@ rm -f ${COOKIE}
 #
 # get first cookie and write redirection target into referer
 #
-${CURL} ${OPTS} -s -D "${TMP}/.alexa.header" -c ${COOKIE} -b ${COOKIE} -A "Mozilla/5.0" -H "Accept-Language: ${LANGUAGE}" -H "DNT: 1" -H "Connection: keep-alive" -H "Upgrade-Insecure-Requests: 1" -L\
+${CURL} ${OPTS} -s -D "${TMP}/.alexa.header" -c ${COOKIE} -b ${COOKIE} -A "${BROWSER}" -H "Accept-Language: ${LANGUAGE}" -H "DNT: 1" -H "Connection: keep-alive" -H "Upgrade-Insecure-Requests: 1" -L\
  https://alexa.${AMAZON} | grep "hidden" | sed 's/hidden/\n/g' | grep "value=\"" | sed -r 's/^.*name="([^"]+)".*value="([^"]+)".*/\1=\2\&/g' > "${TMP}/.alexa.postdata"
 
 #
-# login empty to generate sessiion
+# login empty to generate session
 #
-${CURL} ${OPTS} -s -c ${COOKIE} -b ${COOKIE} -A "Mozilla/5.0" -H "Accept-Language: ${LANGUAGE}" -H "DNT: 1" -H "Connection: keep-alive" -H "Upgrade-Insecure-Requests: 1" -L\
+${CURL} ${OPTS} -s -c ${COOKIE} -b ${COOKIE} -A "${BROWSER}" -H "Accept-Language: ${LANGUAGE}" -H "DNT: 1" -H "Connection: keep-alive" -H "Upgrade-Insecure-Requests: 1" -L\
  -H "$(grep 'Location: ' ${TMP}/.alexa.header | sed 's/Location: /Referer: /')" -d "@${TMP}/.alexa.postdata" https://www.${AMAZON}/ap/signin | grep "hidden" | sed 's/hidden/\n/g' | grep "value=\"" | sed -r 's/^.*name="([^"]+)".*value="([^"]+)".*/\1=\2\&/g' > "${TMP}/.alexa.postdata2"
 
 #
 # login with filled out form
 #  !!! referer now contains session in URL
 #
-${CURL} ${OPTS} -s -c ${COOKIE} -b ${COOKIE} -A "Mozilla/5.0" -H "Accept-Language: ${LANGUAGE}" -H "DNT: 1" -H "Connection: keep-alive" -H "Upgrade-Insecure-Requests: 1" -L\
- -H "Referer: https://www.${AMAZON}/ap/signin/$(awk "\$0 ~/.${AMAZON}.*session-id[\\s\\t]/ {print \$7}" ${COOKIE})" --data-urlencode "email=${EMAIL}" --data-urlencode "password=${PASSWORD}" -d "@${TMP}/.alexa.postdata2" https://www.${AMAZON}/ap/signin > /dev/null
+${CURL} ${OPTS} -s -D "${TMP}/.alexa.header2" -c ${COOKIE} -b ${COOKIE} -A "${BROWSER}" -H "Accept-Language: ${LANGUAGE}" -H "DNT: 1" -H "Connection: keep-alive" -H "Upgrade-Insecure-Requests: 1" -L\
+ -H "Referer: https://www.${AMAZON}/ap/signin/$(awk "\$0 ~/.${AMAZON}.*session-id[ \\s\\t]+/ {print \$7}" ${COOKIE})" --data-urlencode "email=${EMAIL}" --data-urlencode "password=${PASSWORD}" -d "@${TMP}/.alexa.postdata2" https://www.${AMAZON}/ap/signin > "${TMP}/.alexa.login"
 
+# check whether the login has been successful or exit otherwise
+if [ -z "$(grep 'Location: https://alexa.*html' ${TMP}/.alexa.header2)" ] ; then
+	echo "ERROR: Amazon Login was unsuccessful. Possibly you get a captcha login screen."
+	echo " Try logging in to https://alexa.${AMAZON} with your browser. In your browser"
+	echo " make sure to have all Amazon related cookies deleted and Javascript disabled!"
+	echo
+	echo " (For more information have a look at ${TMP}/.alexa.login)"
+
+	rm -f ${COOKIE}
+	rm -f "${TMP}/.alexa.header"
+	rm -f "${TMP}/.alexa.header2"
+	rm -f "${TMP}/.alexa.postdata"
+	rm -f "${TMP}/.alexa.postdata2"
+	exit 1
+fi
+	
 #
 # get CSRF
 #
-${CURL} ${OPTS} -s -c ${COOKIE} -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -c ${COOKIE} -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
  https://${ALEXA}/api/language > /dev/null
 
+rm -f "${TMP}/.alexa.login"
 rm -f "${TMP}/.alexa.header"
+rm -f "${TMP}/.alexa.header2"
 rm -f "${TMP}/.alexa.postdata"
 rm -f "${TMP}/.alexa.postdata2"
 }
@@ -300,9 +324,9 @@ rm -f "${TMP}/.alexa.postdata2"
 #
 get_devlist()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})"\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})"\
  "https://${ALEXA}/api/devices-v2/device?cached=false" > ${DEVLIST}
  
 	if [ ! -f ${DEVTXT} ] ; then
@@ -316,7 +340,7 @@ check_status()
 # bootstrap with GUI-Version writes GUI version to cookie
 #  returns among other the current authentication state
 #
-	AUTHSTATUS=$(${CURL} ${OPTS} -s -c ${COOKIE} -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L https://${ALEXA}/api/bootstrap?version=${GUIVERSION} | sed -r 's/^.*"authenticated":([^,]+),.*$/\1/g')
+	AUTHSTATUS=$(${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L https://${ALEXA}/api/bootstrap?version=${GUIVERSION} | sed -r 's/^.*"authenticated":([^,]+),.*$/\1/g')
 
 	if [ "$AUTHSTATUS" = "true" ] ; then
 		return 1
@@ -350,7 +374,7 @@ set_var()
 		# if no device was supplied, use the first Echo(dot) in device list
         	IDX=0
 		for I in $FAMILY ; do
-			if [ "$I" = "ECHO" ] ; then
+			if [ "$I" = "ECHO" -o "$I" = "KNIGHT" -o "$I" = "ROOK" ] ; then
 			break;
 			fi
 			IDX=$((IDX+1))
@@ -415,9 +439,9 @@ set_var()
 #
 run_cmd()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST -d ${COMMAND}\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST -d ${COMMAND}\
  "https://${ALEXA}/api/np/command?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}"
 }
 
@@ -426,9 +450,9 @@ ${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: kee
 #
 play_radio()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST\
  "https://${ALEXA}/api/tunein/queue-and-play?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}&guideId=${STATIONID}&contentType=station&callSign=&mediaOwnerCustomerId=${MEDIAOWNERCUSTOMERID}"
 }
 
@@ -437,9 +461,9 @@ ${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: kee
 #
 play_song()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST -d "{\"trackId\":\"${SONG}\",\"playQueuePrime\":true}"\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST -d "{\"trackId\":\"${SONG}\",\"playQueuePrime\":true}"\
  "https://${ALEXA}/api/cloudplayer/queue-and-play?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}&mediaOwnerCustomerId=${MEDIAOWNERCUSTOMERID}&shuffle=false"
 }
 
@@ -448,9 +472,9 @@ ${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: kee
 #
 play_playlist()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST -d "{\"playlistId\":\"${PLIST}\",\"playQueuePrime\":true}"\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST -d "{\"playlistId\":\"${PLIST}\",\"playQueuePrime\":true}"\
  "https://${ALEXA}/api/cloudplayer/queue-and-play?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}&mediaOwnerCustomerId=${MEDIAOWNERCUSTOMERID}&shuffle=false"
 }
 
@@ -459,9 +483,9 @@ ${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: kee
 #
 play_prime_playlist()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST -d "{\"asin\":\"${ASIN}\"}"\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST -d "{\"asin\":\"${ASIN}\"}"\
  "https://${ALEXA}/api/prime/prime-playlist-queue-and-play?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}&mediaOwnerCustomerId=${MEDIAOWNERCUSTOMERID}"
 }
 
@@ -470,9 +494,9 @@ ${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: kee
 #
 play_prime_station()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST -d "{\"seed\":\"{\\\"type\\\":\\\"KEY\\\",\\\"seedId\\\":\\\"${SEEDID}\\\"}\",\"stationName\":\"none\",\"seedType\":\"KEY\"}"\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST -d "{\"seed\":\"{\\\"type\\\":\\\"KEY\\\",\\\"seedId\\\":\\\"${SEEDID}\\\"}\",\"stationName\":\"none\",\"seedType\":\"KEY\"}"\
  "https://${ALEXA}/api/gotham/queue-and-play?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}&mediaOwnerCustomerId=${MEDIAOWNERCUSTOMERID}"
 }
 
@@ -481,9 +505,9 @@ ${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: kee
 #
 play_prime_hist_queue()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST -d "{\"deviceType\":\"${DEVICETYPE}\",\"deviceSerialNumber\":\"${DEVICESERIALNUMBER}\",\"mediaOwnerCustomerId\":\"${MEDIAOWNERCUSTOMERID}\",\"queueId\":\"${HIST}\",\"service\":null,\"trackSource\":\"TRACK\"}"\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST -d "{\"deviceType\":\"${DEVICETYPE}\",\"deviceSerialNumber\":\"${DEVICESERIALNUMBER}\",\"mediaOwnerCustomerId\":\"${MEDIAOWNERCUSTOMERID}\",\"queueId\":\"${HIST}\",\"service\":null,\"trackSource\":\"TRACK\"}"\
  "https://${ALEXA}/api/media/play-historical-queue"
 }
 
@@ -493,21 +517,21 @@ ${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: kee
 show_queue()
 {
 	echo "/api/np/player"
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X GET \
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X GET \
  "https://${ALEXA}/api/np/player?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}"
 	echo
 	echo "/api/np/queue"
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X GET \
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X GET \
  "https://${ALEXA}/api/np/queue?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}"
 	echo
 	echo "/api/media/state"
- ${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+ ${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X GET \
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X GET \
  "https://${ALEXA}/api/media/state?deviceSerialNumber=${DEVICESERIALNUMBER}&deviceType=${DEVICETYPE}"
 	echo
 }
@@ -517,9 +541,9 @@ ${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: kee
 #
 delete_multiroom()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X DELETE \
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X DELETE \
  "https://${ALEXA}/api/lemur/tail/${DEVICESERIALNUMBER}"
 }
 
@@ -535,20 +559,31 @@ create_multiroom()
 	done
 	JSON="${JSON%,}]}"
 
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST -d "${JSON}" \
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST -d "${JSON}" \
  "https://${ALEXA}/api/lemur/tail"
 }
 
+#
+# list bluetooth devices
+#
+list_bluetooth()
+{
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
+ -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X GET \
+ "https://${ALEXA}/api/bluetooth?cached=false"
+}
+
 #
 # connect bluetooth device
 #
 connect_bluetooth()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST -d "{\"bluetoothDeviceAddress\":\"${BLUETOOTH}\"}"\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST -d "{\"bluetoothDeviceAddress\":\"${BLUETOOTH}\"}"\
  "https://${ALEXA}/api/bluetooth/pair-sink/${DEVICETYPE}/${DEVICESERIALNUMBER}"
 }
 
@@ -557,18 +592,30 @@ ${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: kee
 #
 disconnect_bluetooth()
 {
-${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
- -H "csrf: $(awk '$0 ~/.amazon.de.*csrf[\s\t]/ {print $7}' ${COOKIE})" -X POST \
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X POST \
  "https://${ALEXA}/api/bluetooth/disconnect-sink/${DEVICETYPE}/${DEVICESERIALNUMBER}"
 }
 
+#
+# device that sent the last command
+# (by Markus Wennesheimer)
+#
+last_alexa()
+{
+${CURL} ${OPTS} -s -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+ -H "Content-Type: application/json; charset=UTF-8" -H "Referer: https://alexa.${AMAZON}/spa/index.html" -H "Origin: https://alexa.${AMAZON}"\
+ -H "csrf: $(awk "\$0 ~/.${AMAZON}.*csrf[ \\s\\t]+/ {print \$7}" ${COOKIE})" -X GET \
+ "https://${ALEXA}/api/activities?startTime=&size=1&offset=1" | sed -r 's/^.*serialNumber":"([^"]+)".*$/\1/'
+ }
+
 #
 # logout
 #
 log_off()
 {
-${CURL} ${OPTS} -s -c ${COOKIE} -b ${COOKIE} -A "Mozilla/5.0" -H "DNT: 1" -H "Connection: keep-alive" -L\
+${CURL} ${OPTS} -s -c ${COOKIE} -b ${COOKIE} -A "${BROWSER}" -H "DNT: 1" -H "Connection: keep-alive" -L\
  https://${ALEXA}/logout > /dev/null
 
 rm -f ${DEVLIST}
@@ -576,26 +623,35 @@ rm -f ${DEVTXT}
 rm -f ${COOKIE}
 }
 
-if [ -z "$BLUETOOTH" -a -z "$LEMUR" -a -z "$PLIST" -a -z "$HIST" -a -z "$SEEDID" -a -z "$ASIN" -a -z "$QUEUE" -a -z "$COMMAND" -a -z "$STATIONID" -a -z "$SONG" -a -n "$LOGOFF" ] ; then
+if [ -z "$LASTALEXA" -a -z "$BLUETOOTH" -a -z "$LEMUR" -a -z "$PLIST" -a -z "$HIST" -a -z "$SEEDID" -a -z "$ASIN" -a -z "$QUEUE" -a -z "$COMMAND" -a -z "$STATIONID" -a -z "$SONG" -a -n "$LOGOFF" ] ; then
 	echo "only logout option present, logging off ..."
 	log_off
 	exit 0
 fi
 
 if [ ! -f ${COOKIE} ] ; then
-	echo "cookie do not exist. logging in ..."
+	echo "cookie does not exist. logging in ..."
 	log_in
 fi
 
-if [ ! -f ${DEVLIST} ] ; then
-	echo "device list do not exist. downloading ..."
-	get_devlist
-fi
-
 check_status
 if [ $? -eq 0 ] ; then
 	echo "cookie expired, logging in again ..."
 	log_in
+	check_status
+	if [ $? -eq 0 ] ; then
+		echo "log in failed, aborting"
+		exit 1
+	fi
+fi
+
+if [ ! -f ${DEVTXT} ] ; then
+	echo "device list does not exist. downloading ..."
+	get_devlist
+	if [ ! -f ${DEVTXT} ] ; then
+		echo "failed to download device list, aborting"
+		exit 1
+	fi
 fi
 
 if [ -n "$COMMAND" ] ; then
@@ -624,6 +680,9 @@ elif [ -n "$BLUETOOTH" ] ; then
 	if [ "$BLUETOOTH" = "null" ] ; then
 		echo "disconnecting dev:${DEVICE} type:${DEVICETYPE} serial:${DEVICESERIALNUMBER} from bluetooth"
 		disconnect_bluetooth
+	elif [ "$BLUETOOTH" = "list" -o "$BLUETOOTH" = "List" -o "$BLUETOOTH" = "LIST" ] ; then
+		echo "bluetooth api list:"
+		list_bluetooth
 	else
 		echo "connecting dev:${DEVICE} type:${DEVICETYPE} serial:${DEVICESERIALNUMBER} to bluetooth device:${BLUETOOTH}"
 		connect_bluetooth
@@ -660,6 +719,8 @@ elif [ -n "$LIST" ] ; then
 	ATTR="accountName"
 	echo "the following devices exist in your account:"
 	grep ${ATTR}\| ${DEVTXT} | sed "s/^.*${ATTR}|//" | sed 's/ /_/g'
+elif [ -n "$LASTALEXA" ] ; then
+	last_alexa
 else
 	echo "no alexa command received"
 fi