Run command every 5 minutes

[Sanjeev gupta_2]

Hi
How can i add in cron to run a command after every 5 minutes
i Read from a web page that u can do this by this:
*/5 * * * * command
But it is not working. will it work on HP-UX
Or i have to use following:-

0,5,10,15,20,25,30,35,40,45,50,55 * * * * command

Pl. suggest on it

Thx
sanjeevg

[Robert Salter]

0,5,10,15,20,25,30,35,40,45,50,55 * * * * command

this will work

[Pete Randall]

Your second attempt should work

0,5,10,15,20,25,30,35,40,45,50,55 * * * * command


Pete

[Dave La Mar]

Sanjeevg-
You can do the last, but you can also simply start the script and have a loop condition where it sleeps 300 (five minutes) then repeats . This can be set to stop at any given time, preferably just prior to your next cron execution of it.
Many options, I'm sure you'll get a response you can use.

Best of luck.

Regards,

dl

[Jeroen Peereboom]

Sanjeev,

use cron to schedule a job every 5 minutes.
You need 0,5,10,15,20,25,30,35,40,45,50,55 * * * * command

Be aware, cron jobs have a limited environment setting. You may need to set your PATH and so on. Read the manpages.

The */5 construct is typical Linux cron.

If you use sleep 300, your job will sleep for 5 minutes, so it will start 5 minutes + the time it needed for execution later than the previous run. It would not be my first choice.

JP

[Hoang Minh Tuan]

Sanjeev,

The second is the true format to run a command every 5 minutes.

The format of cron job is:
minute hour day month date command

HMT

[Nguyen Anh Tien]

1, Check cron log and find error code.
#vi /var/adm/cron/log
2, command must be write in full format
*/5 * * * * /sbin/sh /path/yourshell

[Ravi_8]

Hi

#crontab -e
will open the crontab file
0,5,10,15,20,25,30,35,40,45,50,55 * * * * command

will run the command once in every minutes

[Thierry Poels_1]

hi,

*/5 is Linux syntax and is not supported on HP-UX.

So on HP-UX you'll need to specify the exact times you want the job to run:
0,5,10,15,...
or 1,6,11,16,... whatever.

Maybe we'll get the */n syntax in a new HP-UX release some day.

regards,
Thierry.

[Cem Tugrul]

Hi,

Firstly,if this command will be run for a none root user then you have to modify
/var/adm/cron/cron.allow file and add this
user then;
an example of my user who is running on ksh so;

0,5,10,15,20,25,30,35,40,45,50,55 * * * * (/usr/bin/ksh command)

Believe me mine is working properly...

Good Luck,

[Silver_1]

I were you, will go for your second choice.

Tx
Nair