I am looking for some script or terminal command to list all the scripts (preferably with their paths) which are run on a periodic basis by cron, cron.daily. I am not looking for any filter for time-period of the script and want all the scripts listed ( however some administrators may want this kind of filter).
Purpose: To document all scripts running periodically so that debugging or fault check , updating and transferring to a newer system is easy and efficient.
To find the filenames and script types of all scripts run from cron by non-root users (does not identify user):
find /var/spool/cron/crontabs/ -type f ! -name 'root' \ -exec awk '!/^[[:blank:]]*(#|$)/ {print $6}' {} + | xargs -d'\n' file | grep -i script /home/cas/scripts/fetch.sh: Bourne-Again shell script, ASCII text executable /usr/local/sbin/backup-postgres.sh: Bourne-Again shell script, ASCII text executable To find all executables (binaries & scripts) run from cron by non-root users (identifies user):
find /var/spool/cron/crontabs/ -type f ! -name 'root' \ -execdir awk '!/^[[:blank:]]*(#|$)/ {print FILENAME"\t"$6}' {} + | sed -e 's:^./::' cas /home/cas/scripts/fetch.sh postgres /usr/local/sbin/backup-postgres.sh Of course, both of these have to be run as root. Only root can read the crontabs of all users.
Note: The crontabs may be in a different directory on your system. Check the documentation for your cron daemon.
