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wpa_action script: How to run wpa_cli in daemon mode?

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1

I was trying to build a script that runs when wifi is connected or disconnected. After a lot of searches, I got wpa_cli -a command to work with my script.

test.sh

case "$1" in
 wlan0)
 case "$2" in
 CONNECTED)
 echo WIFI is CONNECTED "$WPA_ID" > output
 #sudo python ./do.py
 ;;
 DISCONNECTED)
 echo WIFI is Disconnected "$WPA_ID" > output
 ;;
 *)
 >&2 echo empty or undefined event for wlan0: ""
 exit 1
 ;;
 esac
 ;;
esac

I was tested the script by running the command sudo wpa_cli -a /home/pi/test.sh. I disconnected the wifi and checked the output file and it contains " WIFI disconnected message". Similar checking is done by connecting to a wifi and we observed "WIFI connected" message.

But when i tried to run the command wpa_cli in daemon mode, It don't work. I have used the command sudo wpa_cli -a /home/pi/test.sh -B. But this time output file have no change if i connected or disconnected the wifi.

But when i ps aux|grep test.sh, it shows the script is running.

linux shell-script scripting raspberry-pi wpa-cli

share|improve this question

edited yesterday

GAD3R

28.1k1958114

asked Apr 9 at 11:46

mcvmcv

235

add a comment | 

1

I was trying to build a script that runs when wifi is connected or disconnected. After a lot of searches, I got wpa_cli -a command to work with my script.

test.sh

case "$1" in
 wlan0)
 case "$2" in
 CONNECTED)
 echo WIFI is CONNECTED "$WPA_ID" > output
 #sudo python ./do.py
 ;;
 DISCONNECTED)
 echo WIFI is Disconnected "$WPA_ID" > output
 ;;
 *)
 >&2 echo empty or undefined event for wlan0: ""
 exit 1
 ;;
 esac
 ;;
esac

I was tested the script by running the command sudo wpa_cli -a /home/pi/test.sh. I disconnected the wifi and checked the output file and it contains " WIFI disconnected message". Similar checking is done by connecting to a wifi and we observed "WIFI connected" message.

But when i tried to run the command wpa_cli in daemon mode, It don't work. I have used the command sudo wpa_cli -a /home/pi/test.sh -B. But this time output file have no change if i connected or disconnected the wifi.

But when i ps aux|grep test.sh, it shows the script is running.

linux shell-script scripting raspberry-pi wpa-cli

share|improve this question

edited yesterday

GAD3R

28.1k1958114

asked Apr 9 at 11:46

mcvmcv

235

add a comment | 

I was trying to build a script that runs when wifi is connected or disconnected. After a lot of searches, I got wpa_cli -a command to work with my script.

test.sh

case "$1" in
 wlan0)
 case "$2" in
 CONNECTED)
 echo WIFI is CONNECTED "$WPA_ID" > output
 #sudo python ./do.py
 ;;
 DISCONNECTED)
 echo WIFI is Disconnected "$WPA_ID" > output
 ;;
 *)
 >&2 echo empty or undefined event for wlan0: ""
 exit 1
 ;;
 esac
 ;;
esac

I was tested the script by running the command sudo wpa_cli -a /home/pi/test.sh. I disconnected the wifi and checked the output file and it contains " WIFI disconnected message". Similar checking is done by connecting to a wifi and we observed "WIFI connected" message.

But when i tried to run the command wpa_cli in daemon mode, It don't work. I have used the command sudo wpa_cli -a /home/pi/test.sh -B. But this time output file have no change if i connected or disconnected the wifi.

But when i ps aux|grep test.sh, it shows the script is running.

linux shell-script scripting raspberry-pi wpa-cli

share|improve this question

edited yesterday

GAD3R

28.1k1958114

asked Apr 9 at 11:46

mcvmcv

235

case "$1" in
 wlan0)
 case "$2" in
 CONNECTED)
 echo WIFI is CONNECTED "$WPA_ID" > output
 #sudo python ./do.py
 ;;
 DISCONNECTED)
 echo WIFI is Disconnected "$WPA_ID" > output
 ;;
 *)
 >&2 echo empty or undefined event for wlan0: ""
 exit 1
 ;;
 esac
 ;;
esac

share|improve this question

edited yesterday

GAD3R

28.1k1958114

asked Apr 9 at 11:46

mcvmcv

235

share|improve this question

edited yesterday

GAD3R

28.1k1958114

asked Apr 9 at 11:46

mcvmcv

235

edited yesterday

GAD3R

28.1k1958114

edited yesterday

GAD3R

28.1k1958114

asked Apr 9 at 11:46

mcvmcv

235

asked Apr 9 at 11:46

mcvmcv

235

1 Answer
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votes

1

I have got the answer. When I run in daemon mode using sudo wpa_cli -a /home/pi/test.sh -B, I was checking the wrong output file( In the home directory ). In the echo, I have not mentioned the correct path for file output, So it will be redirected to the file output in the root / directory.

Thanks for all

share|improve this answer

answered yesterday

mcvmcv

235

add a comment | 

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1

I have got the answer. When I run in daemon mode using sudo wpa_cli -a /home/pi/test.sh -B, I was checking the wrong output file( In the home directory ). In the echo, I have not mentioned the correct path for file output, So it will be redirected to the file output in the root / directory.

Thanks for all

share|improve this answer

answered yesterday

mcvmcv

235

add a comment | 

1

I have got the answer. When I run in daemon mode using sudo wpa_cli -a /home/pi/test.sh -B, I was checking the wrong output file( In the home directory ). In the echo, I have not mentioned the correct path for file output, So it will be redirected to the file output in the root / directory.

Thanks for all

share|improve this answer

answered yesterday

mcvmcv

235

add a comment | 

I have got the answer. When I run in daemon mode using sudo wpa_cli -a /home/pi/test.sh -B, I was checking the wrong output file( In the home directory ). In the echo, I have not mentioned the correct path for file output, So it will be redirected to the file output in the root / directory.

Thanks for all

share|improve this answer

answered yesterday

mcvmcv

235

share|improve this answer

answered yesterday

mcvmcv

235

answered yesterday

mcvmcv

235

answered yesterday

mcvmcv

235