CODEWITHSUNDEEP
bashkill-process
Kousha
Kousha

Reputation: 36189

BASH - Trap Ctrl+C to clean process before quiting

I want to trap Control + C in my script so that I can do some cleaning before I quit the script. I have this so far:

trap ctrl_c INT

main_script() {
   #State of the art technology happening here
}

ctrl_c() {
   #Do some cleaning
   exit 1
}

The problem is that after I press Control + C and get back to console, The console behaves abnormally. I cannot see my keyboard entries anymore and pressing enter doesn't go to a new line. For example, this is what my console looks like:

root@ZonkedCream:~# root@ZonkedCream:~# root@ZonkedCream:~#

Help is appreciated

Upvotes: 3

Views: 94

Answers (1)

mauro
mauro

Reputation: 5940

We don't have the source code of your script so... Just guessing.

Probably you script changes stty settings somehow and they were not restored when you break the application with CTRL-C.

I'd suggest you to save your stty flags as soon as your script starts and restore them in your ctrl_c() function or - at least - use stty sane in ctrl_c() before quitting.

Upvotes: 2

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