[CentOS] Runing a script under cron. Append stdout and, stderr to a log file, propagate stderr back to cron for email, reporting
David G. Miller
dave at davenjudy.orgSun Sep 23 14:13:34 UTC 2007
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"Alexander Georgiev" <alexander.georgiev at gmail.com> wrote: > I want to run a rsync-ing script in cron, generating a very verbose > -vv rsync log in a log file. The log file should combine both stderr > and stdin, which is easy: > > backup.sh >>/var/log/backup.log 2>&1 > > However, I would like to propagate only stderr to cron - in case there > has been an error, cron will mail me the assembled stderr output. If you just want STDERR to get mailed to root (or wherever you specify), remove the "2>$1" from your cron entry. This is what instructs the shell to combine STDOUT with STDERR. Your cron entry should look like: backup.sh >>/var/log/backup.log >> /var/log/backup.log to append STDOUT output to backup.log. cron automatically mails any output from programs. Cheers, Dave -- Politics, n. Strife of interests masquerading as a contest of principles. -- Ambrose Bierce
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