On 12/12/2013 08:35 PM, g issued this missive:
On 12/12/2013 09:10 PM, Bill Davidsen wrote:
Gregory Hosler wrote:
On 12/13/2013 09:02 AM, T.C. Hollingsworth wrote:
On Thu, Dec 12, 2013 at 3:31 PM, Mike Wright
<mike.wright@xxxxxxxxxxxxxx> wrote:
Hi all,
I'm trying to execute a command once a minute. As a test I
place this:
0,1 * * * * /bin/ping -c1 w.x.y.z > /dev/null 2>&1
in /etc/cron.d/everyMinute
but nothing is happening. I've done "service crond restart".
Any ideas?
That "0,1" tells cron to run your command at N:00 and N:01 every
hour. You want "0-59" instead.
or */1
e.g.
*/1 * * * * /bin/ping -c1 w.x.y.z > /dev/null 2>&1
All the best,
Don't think that does what you want, */5 is every 5th time, but /1 is
a NOP, I think. All asterisks should be once a minute.
* * * * * command to execute
| | | | |
| | | | |
| | | | |
| | | | +--- day of week (0 - 7) 0 to 6 are Sunday to Saturday,
| | | | or use names; 7 is Sunday, the same as 0
| | | +----- month (1 - 12)
| | +------- day of month (1 - 31)
| +--------- hour (0 - 23)
+----------- min (0 - 59)
therefore;
1 * * * *
should be use.
No. An asterisk in ANY field means "run for every unit this field
represents" and a "*/1" would be redundant (it may even be ignored).
A "*" in the first (minute) field means "run every minute". A "1" in
that field means "run on the first minute ONLY" (e.g. 12:01, 1:01, 2:01
and so on, but NOT 12:02 or 1:02). A "0" in that field would run at
12:00, 1:00, etc. Get it?
----------------------------------------------------------------------
- Rick Stevens, Systems Engineer, AllDigital ricks@xxxxxxxxxxxxxx -
- AIM/Skype: therps2 ICQ: 22643734 Yahoo: origrps2 -
- -
- Is that a buffer overflow or are you just happy to see me? -
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