topic Re: resolutino of crontab in Operating System - Linux

resolutino of crontab

Tonatiuh — Mon, 07 Feb 2005 17:21:00 GMT

minimal lapse of time in crontab is the minute. How can I change this behavior to 5 seconds or 10 seconds?

Re: resolutino of crontab

NiCK_76 — Mon, 07 Feb 2005 21:19:03 GMT

Hi Tonatiuh ,

Why you need set crontab cycle use seconds? What do you want?

for 5 minutes
*/5 * * * * /path/command
for 10 minutes
*/10 * * * * /path/command

NiCK

Re: resolutino of crontab

Thierry Poels_1 — Tue, 08 Feb 2005 04:36:37 GMT

Hi,

crontab is triggered on the minute. No way around that.

If want a job to be launched quicker then just keep it running in a loop with sleep statements in between if required.

regards,
Thierry.

Re: resolutino of crontab

Sergejs Svitnevs — Tue, 08 Feb 2005 04:45:13 GMT

If you want to run the command every 5
seconds, try a script:

while true
do

sleep 5
done

Regards,
Sergejs

Re: resolutino of crontab

Thomas Bianco — Tue, 08 Feb 2005 10:10:13 GMT

this is the second message i've seen from you on this, and i'm starting to get worried about what you're tring to do.

doing something 12 times a minute is generally poor planning. there is usually an easier way to fix your root cause.

judging from your two posts, you're trying to prevent a program from changing a file by coping it from a known good source every 5-10 seconds.

have you considered changing the permissions to prevent writing to the file? this would be simpler, and wouldn't clog your file system buffers or put undo stress on your hard drives.