CODEWITHSUNDEEP
bash
Michu93
Michu93

Reputation: 5689

Processing result from linux command

I am trying to write program which will monitor number of operations on hard disk.

#!/bin/bash

while true; 
do
    operations=$(iostat -dx /dev/mapper/kaliMichu--vg-home)
    echo "$operations"
    sleep 5
done

So I used iostat for that. Actually I am only interested in some parameters for example w/s. How can I catch it's value into variable e.g WS=$w/s_value

Upvotes: 0

Views: 63

Answers (1)

P....
P....

Reputation: 18351

#!/bin/bash

while true; 
do
    operations=$(iostat -dx /dev/mapper/kaliMichu--vg-home|awk 'NR>3{print $5}')
    echo "$operations"
    sleep 5
done

Here, awk is filterning the desired column for you.

Upvotes: 2

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