Hi guys,

I have a simple question, I want to store the output of the following command:

As you can see it is running all the time, and we get a new line every 3sec.

I just want to store these new lines into a single variable, so I can use it into a script.

To clear the screen, and do not print lines after the others when iotop is running just delete "- C".

I DO NOT WANT TO STORE THE OUTPUT ON THE DRIVE!!!
I DO NOT WANT TO KILL IOTOP, IT MUST BE RUNNING ALL THE TIME IN BACKGROUND!!!

The idea is to do not write on the drive! Just store the output into a single variable called $Activity.

For example:

Activity=$(sudo iotop -t 0 3 | grep "load: ") &

While $Activity... do blahblah... done

sudo iotop -t 0 -C 3 | grep "load: " | script.sh

#!/bin/sh

  while read data
  do
      echo "[$(date +"%D %T")] $data" >> log_activity.txt
  done