Hey guys, trying to use cron to backup my home server. There’s a nextcloud script I run which I copy and pasted from the nextcloud aio GitHub, and this script works in my sudo crontab. However I have a script for my calibre library which runs perfectly well when run manually but as soon as cron time comes around it shows up in the syslog but the calibre library doesn’t actually get rsynced… I’ll add the calibre script here soon but any ideas in the meantime?
Thanks so much!
Errors while running cron jobs often generate “mail” whether you’ve set it up or not.
You can likely check your mail by just running the
mailcommand.Also, in your crontab, add
>> /tmp/cron.logafter your script, at least you’ll see whatever logs get generated from that.Most likely though, the script works when ran manually because it uses your user’s env variables, such as
PATH.I usually just use absolute paths for everything when using cron and this takes care of the vast majority of my issues.