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

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

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…
Active Directory replication delay is the cause to many problems.  Here is a super easy script to force Active Directory replication to all sites with by using an elevated PowerShell command prompt, and a tool to verify your changes.
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
Learn how to navigate the file tree with the shell. Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…
Suggested Courses
Course of the Month11 days, 19 hours left to enroll

752 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