Deciphering Ubuntu's /etc/crontab
54121
What is the story behind the default times set in /etc/crontab?
69489
How do I figure out what package something is in without resorting to Google?
12013
How to find out the reason a command/code was executed on Linux?
107936
Ubuntu 14.04 System Logging
80855
How can I find the program I'm hiding in bash
3959
How to use notify-send with crontab?
100784
Recover cron jobs accidently removed with crontab -r
112884
How to see the details which Ubuntu shows at the time of login anytime?
8259
Cron stopped running; logs say: "Attempting to re-run cron while it is already running."
34671
What does * * * * * (five asterisks) in a cron file mean?
143702
What's the difference between /usr/lib/systemd/system and /etc/systemd/system?
72596
Where are the logs for apt-get?
76584
System Crontab or Root Crontab
102821
is it possible to rsync to another server using crontab?
82235
Use PHP to create, edit and delete crontab jobs?
107365
"cron" processes spawning and piling up, but no crontab
124212
script running in crontab not giving output on shell screen