Monday, August 27, 2012

Script runs as root but not as crontab? or
Why does my script run as the root user but won't run from cron.daily? or
What user does cron.daily run as?

I recently ran into a problem with a Subversion update script I wished to execute daily. Unfortunately the svn update failed due to a permissions error. This made little sense to me as I believed if I ran the script as root the script should work. It turns out that on some *nix systems (RH Linux and other variants) the root user has a home directory called /root. Within this directory is where the .subversion directory sits which contains your connection information.  Thus solution was to set the HOME variable in my script, as crontab doesn't necessarily pick up environment variables that you get when you log in.

Below you will find the simple fix.

export HOME=${HOME}
cd /usr/local/svn_workspace/trunk
/opt/CollabNet_Subversion/bin/svn update

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