Checking if CRON script already running
11225
Generic solution to prevent a long cron job from running in parallel?
154642
Editing crontab
114384
How can I tell cron to run a command every other day (odd/even)
70714
Test if operating from live session or not inside a shell script
37703
How can I check if a directory exists in a Bash shell script?
131828
Why isn't this crontab job running
15677
Python script not working on crontab
74326
Cannot get PHP cron script to run
20125
How do I syntax check a Bash script without running it?
18118
What is the correct way to edit a crontab file?
15046
How to check how long a process has been running?
38345
"cron" processes piling up
12808
Script to Notify me when something happens on a shared directory
76626
PHP function that receive a cron string and return the next run timestamp
107365
"cron" processes spawning and piling up, but no crontab
153789
How to determine if a PHP file is loaded via cron/command line
110082
how can I make cron run a job right now, for testing/debugging? without changing the schedule!