wps button and shell scripting, can't use screen! help!

[demonjester]

My script works perfect if I execute it from ssh, but when I try to execute it via wps button everything works except using screen command so I can run tcpdump in the background and use screen to view progress later.

I have tried different methods, from executing the script on ssh from the wps button to putting the actual code in the wps button textfield (in the gui)

I have tried these different combination of switches

screen

screen -d -m

screen -d -m -S

screen -S

screen -dm

screen -dmS

and still will not start screen windows if I do it via WPS buttong. Like I mentioned before if i do it within ssh, whether its bash ./script.sh or sh ./script.sh it runs just fine, and I don't know what to do. I want to make it independent so I don't have to have a tablet/laptop attached to it at all time. or briefly.

if anybody has any recommendations I would greatly appreciate it.

BTW I have been using this wifi connect script inside my script (it was a last minute type thing) http://forums.hak5.org/index.php?/topic/29487-wifi-connect-script-updated-v12/

Edited July 5, 2013 by demonjester

[airman_dopey]

Not sure how to do it via screen, but have you thought about taking the command you're using in the WPS button script and having it redirect the output to a file you can then tail later?

[demonjester]

Not sure how to do it via screen, but have you thought about taking the command you're using in the WPS button script and having it redirect the output to a file you can then tail later?

you mean tcpdump -i wlan0 -w sniffing.cap?

[airman_dopey]

Tcpdump [options] > filename.txt

[guybrush]

why don't you just send the command to the background using the & and record the pid in a temp file somewhere

[demonjester]

why don't you just send the command to the background using the & and record the pid in a temp file somewhere

I tried & but it still did not work. I am still experimenting though.