resolutino of crontab

[Tonatiuh]

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

[NiCK_76 · Accepted solution]

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

[Thierry Poels_1]

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.

[Sergejs Svitnevs]

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

while true
do

sleep 5
done


Regards,
Sergejs

[Thomas Bianco]

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.