Hi Meaulnes, > I want to install a shell script that runs every day with crontab. > > Now I know there is some catch on BlueOnyx for doing that but I didn't > jot it down. > > > So there *is* a crontab file but I can't edit it the normal way... can I > just edit /etc/crontab and add my line like > 5 4 * * * root /root/myScript.sh # run myScript.sh every day at 04:05 > without breaking anything? > Do I have to restart some service? There are a couple of different ways how this can be done.
You can use "crontab -e" to create a new Root cronjob. There isn't one already, but when you use "crontab -e" it'll fire up the VIM editor, allows you to specify your cronjob and when you than save it, you can see it in being present when you run "crontab -l". Or you can put the cronjob into a file like /root/mycron and can then run "crontab /root/mycron" to put it into effect. Likewise: Afterwards "crontab -l" will show that cronjob as being present. Another way is to put your cronjob into one of the existing config directories of cron: [root@5209r ~]# tree -d /etc/cron*|grep -v error /etc/cron.d /etc/cron.daily /etc/cron.half-hourly /etc/cron.hourly /etc/cron.monthly /etc/cron.quarter-daily /etc/cron.quarter-hourly /etc/cron.weekly Take a look at the scripts that are already in these directories to get some idea. Whatever is in /etc/cron.daily gets executed once per day. Whatever is in /etc/cron.d/ gets executed by the time configured in the config files. Example: [root@5209r ~]# cat /etc/cron.d/swatch.cron # swatch is the system watcher */15 * * * * root /usr/sausalito/sbin/swatch.sh >/dev/null 2>& As you can see there, /etc/cron.d/swatch.cron makes sure that /usr/sausalito/sbin/swatch.sh gets executed every 15 minutes. Typically when I add cronjobs, I just put a config file like this into /etc/cron.d/, as it's the easiest and most transparent way. When you create such a new config file, it is best to restart crond like this: "systemct restart crond". -- With best regards Michael Stauber _______________________________________________ Blueonyx mailing list Blueonyx@mail.blueonyx.it http://mail.blueonyx.it/mailman/listinfo/blueonyx