Re: [CentOS] Runing a script under cron. Append stdout and, stderr to a log file, propagate stderr back to cron for email, reporting
Alexander Georgiev [EMAIL PROTECTED] 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 21 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 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Runing a script under cron. Append stdout and stderr to a log file, propagate stderr back to cron for email reporting
Dear List, 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 21 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. I tried the following: $ (./backup.sh /var/log/backup.log) 21 | tee -a /var/log/backup.log which propagates the stderr to cron, but lines written to /var/log/backup.log are out of sequence - for example if the contents of backup.sh are: #!/bin/bash echo out 1 1 echo out 2 1 echo out 3 1 echo out 4 1 echo err 5 2 echo out 6 1 echo out 7 1 echo out 8 1 I get in /var/log/backup.log: out 1 out 2 out 3 out 4 out 6 out 7 out 8 err 5 I would like the lines in their initial sequence. Do you know a shell trick or a tool that I can use to achive desired goal? Best regards, alex ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Runing a script under cron. Append stdout and stderr to a log file, propagate stderr back to cron for email reporting
On Sat, 2007-09-22 at 17:11 +0300, Alexander Georgiev wrote: I would like the lines in their initial sequence. Do you know a shell trick or a tool that I can use to achive desired goal? Can't be done. stdout and stderr aren't synchronized. -- Ignacio Vazquez-Abrams [EMAIL PROTECTED] PLEASE don't CC me; I'm already subscribed signature.asc Description: This is a digitally signed message part ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
