Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win


Unix BASH Scripting - Crontab output to file

Posted on 2011-02-22
Medium Priority
Last Modified: 2012-05-11
I have a script which runs weekly on my crontab (see below) but would like to output results to file, how would I do this?

I tried including this option pointing to a txt file but didn't seem to work:

2>&1 >
#Alert log tidy script

date=`date +%Y%m%d`

mkdir $tempDir

cd $logDir

find . -name "*alert.log*" -type f -mtime +30 -exec mv '{}' $tempDir \;

tar cvf - ${tempDir}/* | gzip > ${archiveDir}/alertlog_archive.${date}.tar.gz

rm -fr $tempDir

cd $archiveDir

find . -name "alertlog_archive*" -type f -mtime +60 -exec rm {} \;

Open in new window

Question by:Lico_w
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
LVL 68

Accepted Solution

woolmilkporc earned 1000 total points
ID: 34950528

you could change yiur crontab entry like

* * * * * /path/to/script >/path/to/log 2>/path/to/errorlog

or you could add as the second/third lines to your script

exec 1>/path/to/log
exec 2>/path/to/errorlog

Of course you could combine both logs by using

2>&1 instead of 2>/path/to/errorlog


Assisted Solution

plshrk earned 1000 total points
ID: 34950585
The output usually is in your mail que.
Try this:  0 * * * * ~/script.sh >/dev/null 2>&1

Author Closing Comment

ID: 34951744
Both solutions work perfectly.
LVL 68

Expert Comment

ID: 34951768
The second solution will give no output at all and you won't receive any email either. Is this what you desire?

Thx for the points anyway.

LVL 48

Expert Comment

ID: 34955234
Note that

cmd 2>&1 >file

will not produce the same results as

cmd >file 2>&1


Featured Post

 [eBook] Windows Nano Server

Download this FREE eBook and learn all you need to get started with Windows Nano Server, including deployment options, remote management
and troubleshooting tips and tricks

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Attention: This article will no longer be maintained. If you have any questions, please feel free to mail me. jgh@FreeBSD.org Please see http://www.freebsd.org/doc/en_US.ISO8859-1/articles/freebsd-update-server/ for the updated article. It is avail…
Installing FreeBSD… FreeBSD is a darling of an operating system. The stability and usability make it a clear choice for servers and desktops (for the cunning). Savvy?  The Ports collection makes available every popular FOSS application and packag…
Learn how to find files with the shell using the find and locate commands. Use locate to find a needle in a haystack.: With locate, check if the file still exists.: Use find to get the actual location of the file.:
This video shows how to set up a shell script to accept a positional parameter when called, pass that to a SQL script, accept the output from the statement back and then manipulate it in the Shell.
Suggested Courses

610 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question