Cron daemon running status check
5,245
Solution 1
ps ax|grep cron
The error you get is because of the -
in the ps
command is not needed
It depends a bit on which version of ps you are using, on RHEL man ps says:
This version of ps accepts several kinds of options:
1 UNIX options, which may be grouped and must be preceded by a dash.
2 BSD options, which may be grouped and must not be used with a dash.
3 GNU long options, which are preceded by two dashes.
...
EXAMPLES
To see every process on the system using standard syntax:
ps -e
ps -ef
ps -eF
ps -ely
To see every process on the system using BSD syntax:
ps ax
ps axu
Solution 2
Try the command ps -ef | grep cron
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Comments
-
KItis over 1 year
I have a script which need to be run as cron job.
In the staging environment i could run the script as a cronjob. but in the production environment it is not working,
so i checked whether cron daemon is running on the production
ps -ax|grep cron
but this command gives me following error message.
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ 4120 ? Ss 0:06 crond 13640 pts/6 S+ 0:00 grep cron
could anybody explain me what is wrong with this command
-
user5249203 almost 12 yearsThis confusion arises because GNU/Linux combines two different Unix traditions for the ps command syntax - BSD and SVR.
ps -ef
also works fine under Linux. -
user5249203 almost 12 yearsWelcome to superuser. Please remember to use "comments" (not "Answers") to ask the question poster for more information. I edited out the superfluous parts of your answer but feel free to reinstate them (use "rollback") if you disagree. But remember your answer may get downvoted if it doesn't look like a useful answer.