MQTT as a variable on Bash?
Clash Royale CLAN TAG#URR8PPP
Hi I want to try and convert a message receieved from MQTT into a variable so I can do an "IF script" using messages sent from a certain topic on mqtt.
I tried this at top of script but didn't work:
Message = mosquitto_sub -d -t "test/test"
Thank you
bash variable mqtt
asked Jan 3 at 14:02
securitytestmansecuritytestman
113
add a comment |
Hi I want to try and convert a message receieved from MQTT into a variable so I can do an "IF script" using messages sent from a certain topic on mqtt.
I tried this at top of script but didn't work:
Message = mosquitto_sub -d -t "test/test"
Thank you
bash variable mqtt
asked Jan 3 at 14:02
securitytestmansecuritytestman
113
Themosquitto_subcommand runs indefinitely, right? Are you okay with using an option like-C 5to disconnect after receiving 5 messages?
– Haxiel
Jan 3 at 14:24
I want it to run in background constantly. I want the script to play a sound if the message is the correct one or if something is received via that topic.
– securitytestman
Jan 3 at 16:03
add a comment |
Hi I want to try and convert a message receieved from MQTT into a variable so I can do an "IF script" using messages sent from a certain topic on mqtt.
I tried this at top of script but didn't work:
Message = mosquitto_sub -d -t "test/test"
Thank you
bash variable mqtt
asked Jan 3 at 14:02
securitytestmansecuritytestman
113
Hi I want to try and convert a message receieved from MQTT into a variable so I can do an "IF script" using messages sent from a certain topic on mqtt.
I tried this at top of script but didn't work:
Message = mosquitto_sub -d -t "test/test"
Thank you
bash variable mqtt
bash variable mqtt
asked Jan 3 at 14:02
securitytestmansecuritytestman
113
asked Jan 3 at 14:02
securitytestmansecuritytestman
113
asked Jan 3 at 14:02
securitytestmansecuritytestman
113
asked Jan 3 at 14:02
securitytestmansecuritytestman
113
asked Jan 3 at 14:02
securitytestmansecuritytestman
113
113
Themosquitto_subcommand runs indefinitely, right? Are you okay with using an option like-C 5to disconnect after receiving 5 messages?
– Haxiel
Jan 3 at 14:24
I want it to run in background constantly. I want the script to play a sound if the message is the correct one or if something is received via that topic.
– securitytestman
Jan 3 at 16:03
add a comment |
Themosquitto_subcommand runs indefinitely, right? Are you okay with using an option like-C 5to disconnect after receiving 5 messages?
– Haxiel
Jan 3 at 14:24
I want it to run in background constantly. I want the script to play a sound if the message is the correct one or if something is received via that topic.
– securitytestman
Jan 3 at 16:03
The
mosquitto_sub command runs indefinitely, right? Are you okay with using an option like -C 5 to disconnect after receiving 5 messages?– Haxiel
Jan 3 at 14:24
The
mosquitto_sub command runs indefinitely, right? Are you okay with using an option like -C 5 to disconnect after receiving 5 messages?– Haxiel
Jan 3 at 14:24
I want it to run in background constantly. I want the script to play a sound if the message is the correct one or if something is received via that topic.
– securitytestman
Jan 3 at 16:03
I want it to run in background constantly. I want the script to play a sound if the message is the correct one or if something is received via that topic.
– securitytestman
Jan 3 at 16:03
add a comment |
1 Answer
1
active
oldest
votes
If you want the result of the command in a variable you've to write the line between cote character like this :
Message=`mosquitto_sub -d -t "test/test"`
If you want to use the variable in place of the command you should write the line like this :
Message="mosquitto_sub -d -t 'test/test'"
You've to look forward the special character in the bash script
answered Jan 3 at 14:57
dubisdubis
5181516
unfortunately it didn't work with MQTT I might use node red in the end.
– securitytestman
Jan 3 at 16:44
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
If you want the result of the command in a variable you've to write the line between cote character like this :
Message=`mosquitto_sub -d -t "test/test"`
If you want to use the variable in place of the command you should write the line like this :
Message="mosquitto_sub -d -t 'test/test'"
You've to look forward the special character in the bash script
answered Jan 3 at 14:57
dubisdubis
5181516
unfortunately it didn't work with MQTT I might use node red in the end.
– securitytestman
Jan 3 at 16:44
add a comment |
If you want the result of the command in a variable you've to write the line between cote character like this :
Message=`mosquitto_sub -d -t "test/test"`
If you want to use the variable in place of the command you should write the line like this :
Message="mosquitto_sub -d -t 'test/test'"
You've to look forward the special character in the bash script
answered Jan 3 at 14:57
dubisdubis
5181516
unfortunately it didn't work with MQTT I might use node red in the end.
– securitytestman
Jan 3 at 16:44
add a comment |
If you want the result of the command in a variable you've to write the line between cote character like this :
Message=`mosquitto_sub -d -t "test/test"`
If you want to use the variable in place of the command you should write the line like this :
Message="mosquitto_sub -d -t 'test/test'"
You've to look forward the special character in the bash script
answered Jan 3 at 14:57
dubisdubis
5181516
If you want the result of the command in a variable you've to write the line between cote character like this :
Message=`mosquitto_sub -d -t "test/test"`
If you want to use the variable in place of the command you should write the line like this :
Message="mosquitto_sub -d -t 'test/test'"
You've to look forward the special character in the bash script
answered Jan 3 at 14:57
dubisdubis
5181516
answered Jan 3 at 14:57
dubisdubis
5181516
answered Jan 3 at 14:57
dubisdubis
5181516
answered Jan 3 at 14:57
dubisdubis
5181516
5181516
unfortunately it didn't work with MQTT I might use node red in the end.
– securitytestman
Jan 3 at 16:44
add a comment |
unfortunately it didn't work with MQTT I might use node red in the end.
– securitytestman
Jan 3 at 16:44
unfortunately it didn't work with MQTT I might use node red in the end.
– securitytestman
Jan 3 at 16:44
unfortunately it didn't work with MQTT I might use node red in the end.
– securitytestman
Jan 3 at 16:44
add a comment |
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The
mosquitto_subcommand runs indefinitely, right? Are you okay with using an option like-C 5to disconnect after receiving 5 messages?– Haxiel
Jan 3 at 14:24
I want it to run in background constantly. I want the script to play a sound if the message is the correct one or if something is received via that topic.
– securitytestman
Jan 3 at 16:03