Shell errors

[Sivasingam Santhakumar]

Dear gurus,

How can trap shell messages (stdout/stderr) into a perl script?.

For example:

I want to trap my faild jobs (in cron) and email me using perl script.
I don't want cron to send me mail for security reasons.

Thanks

[Mark Grant]

Well, you could pipe the output into a perl script with something like this.

scriptname.sh 2>&1 | perl_script.pl

This will work with cron or anything else in fact.

If the perl script reads it will get both the errors and the normal output in the above case.

[Bill Thorsteinson]

Try somethink like

command 2> /tmp/$$.err || \
errorMail.pl /tmp/$$.err
rm $$.err

This will send the stderr output if command
exits with an error status.

Or

command 2> /tmp/$$.err
[ -s /tmp/$$.err ] && errorMail.pl /tmp/$$.err
rm $$.err

This will send an email if you have output on
stderr.