Cron: Difference between revisions
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crontab -e | crontab -e | ||
and edit it to something like | and edit it to something like: | ||
*/5 * * * * /home/mmurtaugh/xpub.sh > /home/mmurtaugh/xpub.log | |||
This runs the script <code>xpub.sh</code> every 5 minutes, and writes its outputs to xpub.log. | |||
== Log errors == | |||
You can let your program its STDOUT to a logfile, to see if your cronjob works. | |||
Tip: use "append", with double ">>", to see if it is running: | |||
*/5 * * * * /home/mmurtaugh/xpub.sh >> /home/mmurtaugh/xpub.log | |||
Then, you can add <code>2>&1</code> to the end of your line, to write STDERR to STDOUT as well. So in other words: it catches any errors and writes them to your log file. | |||
*/5 * * * * /home/mmurtaugh/xpub.sh >> /home/mmurtaugh/xpub.log 2>&1 | |||
== Argh how to check my cron timing? == | |||
https://crontab.guru/ | |||
Latest revision as of 11:57, 19 November 2024
The Linux way to schedule commands.
http://www.adminschoice.com/crontab-quick-reference
Setting up a script to run a script in your home folder every five minutes (and log it)
crontab -e
and edit it to something like:
*/5 * * * * /home/mmurtaugh/xpub.sh > /home/mmurtaugh/xpub.log
This runs the script xpub.sh every 5 minutes, and writes its outputs to xpub.log.
Log errors
You can let your program its STDOUT to a logfile, to see if your cronjob works.
Tip: use "append", with double ">>", to see if it is running:
*/5 * * * * /home/mmurtaugh/xpub.sh >> /home/mmurtaugh/xpub.log
Then, you can add 2>&1 to the end of your line, to write STDERR to STDOUT as well. So in other words: it catches any errors and writes them to your log file.
*/5 * * * * /home/mmurtaugh/xpub.sh >> /home/mmurtaugh/xpub.log 2>&1