[CentOS] Re: cat cron jobs into crontab
Styma, Robert E (Robert)
stymar at alcatel-lucent.com
Tue Mar 13 16:32:55 UTC 2007
> Balsmeier enlightened
> >> us:
> >>> What's the best/safest way to "cat" the following job
> into crontab?
> >>> */3 * * * * /usr/lib64/nagios/plugins/check_megaraid_passive.sh >
> >>> /dev/null 2>&1
> >>> I am used to doing this manually via crontab -e, but now
> I simply have
> >>> too many centos servers to build in a given week (get to
> toss another
> >>> 120K at some more 2U chenbro/tyan/amd64's -w000ooo).
> >> echo '*/3 * * * *
> /usr/lib64/nagios/plugins/check_megaraid_passive.sh >
> >> /dev/null 2>&1' > /etc/cron.d/check_megaraid_passive.sh
> >> (Watch for wrapping, of course).
> >> Matt
> > Isn't this supposed to be written to /etc/crontab (if root) or
> > to /var/spool/cron/username (if a user) ? Or maybe I am mistaken?
> > Akemi
> Dropping a script into cron.d is the safer way of scripting a
> cron job.
> You are less likely to damage something if a script errs.
The most common way I have seen ov updating crontab is the
1. login or su to the appropriate user
2. crontab -l > /tmp/crontab.txt
3. edit /tmp/crontab.txt to your liking
4. crontab /tmp/crontab.txt
This gets the right files in the right places an alerts cron
of the change.
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