Vmstat

Linux and Unix-Like Linux
1

I m checking idle time using vmstat, below are the results

var=$(ssh wmtmgr@$hostname vmstat | tail -1 | awk '{print $15}')

89

and now im subtracting 89 with 100 & im getting expected results

expr 100 -  $var

11

Now How can I get the result 11 in one line code?

2

Hello sam@sam,

You could use following for same.

 var=$(ssh wmtmgr@$hostname vmstat | tail -1 | awk '{print 100 - $15}')
 echo $var

Thanks,
R. Singh

3

How about vmstat 1 1 instead of piping through tail -1 ?

4

Thanks R.P singh, it works,

@RudiC
If I use vmstat 1 1 or vmstat both are giving same results

5

... but you save a tail process.