Linux - One by One the Penguins steal my sanity.

List of some commands I like and you will too !

screen
- Running a script and got disconnected ?
- Running a script in background and forgot to pipe the output ?

These are some and numerous other reasons why you should use screen command rather than doing the above.

screen and hit enter
ctl -a d - to detach from the screen.

screen -ls (to view all disconnected screens like follows)

There are screens on:
6295.ttyp1 (Detached)
22270.ttyp3.server (Detached)
24315.ttyp5.server (Detached)
3 Sockets in /tmp/screens/S-username

screen -r 22270
lets you can get into session 22270

Having fun ?

What happens when i wnat screen's inside screens ?

well. You do the following.

ctl - a - n
gets you in the next screen.

ctl - a - p
gets you in the previous screen.




watch
Great utility ! Ever tried doing iostat -x 3. Well it gives io statictics update every 3 seconds.
Now try this,
watch -n 3 -d iostat
It also refreshes iostat every 3 seconds. But check out the difference.
watch enables the same display over and over again and the deviation portion highlighted.
Probably one of the little great utilites i have every used.