Control+C in ksh

[YLTan]

is it possible to disable Ctrl+C keystrokes from sending a INT signal in ksh?

I have a scripts that use to startup tomcat java process. The process attached itself to root 1 and completed it startup process but when i do Ctrl+C keystrokes to exit to prompt the tomcat java process dies.

[Mark Grant · Accepted solution]

just put this near the top of your script

trap "" 2

[Graham Cameron_1]

or reset the INT signal to some other key,
eg
stty intr ^Y


stty -a shows them all.

-- Graham

[Elmar P. Kolkman]

I would go for a combination of both... Using stty to set it to a unknown key combination (try to use something a user won't accidentally type, for instance some character above ascii code 128:
stty intr \222

Remember that stty doesn't set your interrupt only for the duration of your script, but also for when the script is finished. So when you finish the script, set it back to ^C, or better, build the script like this, with your real commands at the #Do your stuff:
trap 2 "echo Please do not interrupt this program"
OLDSETTINGS=$(stty -g)
stty intr \222

# Do your stuff

stty $OLDSETTINGS