crontab entry

UNIX Solaris
1

Hi,

i need to setup a cronjob that has will execute iostat command from morning to evening time.
for instance the timing has will be like this.

8:00 A.M -- 6:00P.M

how to define this entry in crontab

Regards

2

You should read this: cron and crontab

0 8-18 * * * ...
3

Thanks a lot

Regards

4

However ...
The output from a single "iostat" without parameters is totally meaningless.
It may be better to invoke "iostat" once with parameters to cause it to sample for the period you require at the intervals you require. Beware that like "vmstat" the first set of statistics (whatever the time interval) should be disregarded.
IMHO it is worth the effort and disc space to set up "sar" (see "man sa2") if you want basic system performance statistics.