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===How to run a crontab in Cygwin on Windows=== | ===How to run a crontab in Cygwin on Windows=== | ||
| + | Just to mention first that you could bypass cron altogether with this little trick:<br /> | ||
| + | Create a scheduled task with the windows scheduler by calling the shell program | ||
| + | <pre> | ||
| + | C:\cygwin\bin\bash.exe -l -c /cygwin/path/to/shell | ||
| + | </pre> | ||
| + | '''otherwise...''' | ||
* Install cygrunsrv and cron packages from the admin bundle (with 'Install from internet" option) | * Install cygrunsrv and cron packages from the admin bundle (with 'Install from internet" option) | ||
| − | * From a Cygwin prompt, type: | + | * From a Cygwin prompt, to install the cron daemon as a service type: |
<pre> | <pre> | ||
cygrunsrv --install cron --path /usr/sbin/cron --args -n | cygrunsrv --install cron --path /usr/sbin/cron --args -n | ||
| Line 13: | Line 19: | ||
cygrunsrv --start cron | cygrunsrv --start cron | ||
</pre> | </pre> | ||
| − | + | Now change the properties on the service to run as a user other than "Local System" | |
| − | |||
| − | |||
| − | |||
| − | |||
====Configure cron==== | ====Configure cron==== | ||
| − | Run | + | Run this from a Cygwin terminal |
<pre> | <pre> | ||
cron-config | cron-config | ||
</pre> | </pre> | ||
| − | |||
Show system log of possible problems from the cron daemon (service) | Show system log of possible problems from the cron daemon (service) | ||
<pre> | <pre> | ||
/usr/bin/cronevents | /usr/bin/cronevents | ||
</pre> | </pre> | ||
| + | |||
===Diagnose problems=== | ===Diagnose problems=== | ||
Check installed modules | Check installed modules | ||
| Line 37: | Line 39: | ||
cygrunsrv -Q cron | cygrunsrv -Q cron | ||
</pre> | </pre> | ||
| + | If you get | ||
| + | <pre> | ||
| + | (CRON) error (can't switch user context) | ||
| + | </pre> | ||
| + | this means that the cron service is trying to run jobs as the "Local System" account. Right-click on the service and change the user it runs jobs as to be the one you want. | ||
Latest revision as of 15:05, 4 May 2015
How to run a crontab in Cygwin on Windows[edit]
Just to mention first that you could bypass cron altogether with this little trick:
Create a scheduled task with the windows scheduler by calling the shell program
C:\cygwin\bin\bash.exe -l -c /cygwin/path/to/shell
otherwise...
- Install cygrunsrv and cron packages from the admin bundle (with 'Install from internet" option)
- From a Cygwin prompt, to install the cron daemon as a service type:
cygrunsrv --install cron --path /usr/sbin/cron --args -n
- Start the cron daemon from a Windows prompt with:
net start cron
or from a Cygwin prompt with:
cygrunsrv --start cron
Now change the properties on the service to run as a user other than "Local System"
Configure cron[edit]
Run this from a Cygwin terminal
cron-config
Show system log of possible problems from the cron daemon (service)
/usr/bin/cronevents
Diagnose problems[edit]
Check installed modules
cygcheck.exe -c
Check current status
cygrunsrv -Q cron
If you get
(CRON) error (can't switch user context)
this means that the cron service is trying to run jobs as the "Local System" account. Right-click on the service and change the user it runs jobs as to be the one you want.
