How to refresh command output automatically?

mesuutt · 12-02-2011, 07:36 AM

Hi friends

I want see commands outputs automatically refresh like top command on the console.This is possible?

For example;
I want to see which process most use memory.For this I am using below command.

Code:

ps -aux | sort -nrk 4 | head

But I must execute over and over again .

How am I accomplish this ?

Thanks for help.

catkin · 12-02-2011, 07:41 AM

You could script it:

Code:

#!/bin bash
while true
do
    ps -aux | sort -nrk 4 | head
    sleep 5
done

Please ask if you need advice on creating and running such a script.

mesuutt · 12-02-2011, 08:29 AM

catkin your script is good but I want that command work like top command , so output change in the same place.
This is possible?

ottavio · 12-03-2011, 04:07 AM

What about

Code:

watch -n 5 'ps -aux | sort -nrk 4 | head'

?

But you can achieve the same in top by pressing 'm' and then 'n' and then '4'.

catkin · 12-03-2011, 08:34 AM

In case you don't go for ottavio's suggestions ...

Quote:

Originally Posted by mesuutt

catkin your script is good but I want that command work like top command , so output change in the same place.
This is possible?

Code:

#!/bin bash
while true
do
    clear
    ps -aux | sort -nrk 4 | head
    sleep 5
done

mesuutt · 12-04-2011, 08:06 AM

ottavio's suggestion is perfect for me.
I was looking just thing this

Thanks for helping to all.