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POCrontab not working
 

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    <p>I use crontab -e to add the following:</p> <pre><code>36 * * * * /root/Backup/backup.sh </code></pre> <p>But it does not work! </p> <p>I find this in syslog, but it actually does not run:</p> <pre><code>Oct 6 15:36:01 ubuntu CRON[7685]: (root) CMD (/root/Backup/backup.sh) </code></pre> <p>I sure my script works as it runs successfully if I run it directly.</p> <pre><code># # define a function to create directory # fnCreateFolder() { if [ ! -d $1 ]; then mkdir $1 echo "New directory, '$1', is created" fi } ############################################################################ # # Full pathname to binaries to avoid problems with aliases and builtins etc. # DATECMD="/bin/date" RMCMD="/bin/rm" subdir=`${DATECMD} +%Y-%m-%d` if [ ! -d "$subdir" ]; then fnCreateFolder "$subdir" fi ############################################################################ subdir=`${DATECMD} +%Y-%m-%d` fnCreateFolder "$subdir" datetime=`${DATECMD} +%Y-%m-%d_%Hh%Mm%Ss_%p` echo "date-time: $datetime" backupname="Backup@$datetime.sql" # backup DB mysqldump -u'sun' -p'sun2010fyp' smartward &gt; $backupname echo "start tar cvzf Backup($datetime).tar.gz $backupname" # zip the backup file tar cvzf "Backup($datetime).tar.gz" "$backupname" echo "finished zip $backupname as Backup($datetime).tar.gz" # move tar file to dest folder echo "&amp; move it to the destination directory" mv "Backup($datetime).tar.gz" "$subdir" # &amp; remove the backup file after zipping it ${RMCMD} -f "$backupname" echo "finally removed $backupname" #DONE </code></pre>
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    1. USBear
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    1. COMaybe your script depends on an environment variable that is present in your shell, but not in the shell started by cron?
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      1. USDawie Strauss
    2. COBut no Hello is printed when I replace it with echo... So I don't think it is not related to my script
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      1. USBear
    3. CORedirect the output from echo to a file: `echo "Hello" > /tmp/hello.txt`. That will prove to you whether the echo succeeded or not.
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      1. USJohn Keyes
 

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