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December, 2013Archive for

run levels description

Saturday, December 21st, 2013

The Following points shows the meaning of each run level :

  • on LINUX-UBUTNU/DEBIAN:

0 – halt
1 – single user
2 – multiuser (default)
3 – same as 2
4 – same as 2
5 – same as 2
6 – reboot Continue Reading…

how to know current run level

Saturday, December 21st, 2013

run the following command to know your current run level:


# who -r
         run-level 2  2013-12-20 00:39

how to know your operating system release

Saturday, December 21st, 2013

if you want to get your operating system relase you have 2 ways to do that:

First: you can run the following command:

# lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 13.04
Release:	13.04
Codename:	raring

Continue Reading…