how to redirect error code of screen

Asked Jul 28 '14 at 09:46

Active Jul 28 '14 at 10:23

Viewed 80 times

I am running a command through screen like this:

screen -d -m sh -c 'command'

The problem is that I would like to check if the command succeeded.

It seems that I can't do this with echo $?.

One way is to redirect the error to a file and check the file if it is empty.

screen -d -m sh -c 'invalid_command  2>error.txt'

Can you think of another way in order not to mess with files?

edited Jul 28 '14 at 10:23

Biffen

asked Jul 28 '14 at 09:46

Poser Poter

What about `screen -d -m sh -c 'command ; echo $?'` ? – Scony Jul 28 '14 at 09:55
It doesn't return anything . it seems that screen absorbs the output – Poser Poter Jul 28 '14 at 10:43
Let's force output to tty ugly way: `screen -d -m sh -c 'command ; echo $? > \`tty\`'` – Scony Jul 28 '14 at 16:29
this doesn't work either – Poser Poter Jul 29 '14 at 13:35

0 Answers0