exception handeling in script

reach2tripplek · 05-01-2006, 06:08 AM

Hi guys
I want to write a shell script chkerror.sh which will check for command error and exception in other shell script to which i have to test or debug .and will display error message on terminal by stopping the execution of script.
Can anybody guide me how to do that .

Will it be possible to use a global variable and function in each script to which i have to test instead of running a script.

Waiting for ur needful reply
Kamal

chrism01 · 05-02-2006, 02:26 AM

In Unix, if all is well after a cmd, $? is usually set to zero, so the std test is:

Code:

rslt=`cmd`
if [[ $? -ne 0 ]]
then
    error occurred, send msg etc
fi

where cmd is the other prog. If it doesn't handle its own stdout/stderr, you can redirect those here or capture them for debug.