Showing posts with label identify yourself in linux. Show all posts
Showing posts with label identify yourself in linux. Show all posts

Monday, October 20, 2014

identify yourself in linux



whoami

The whoami command tells you your username.
[root@LINUX ~]# whoami
root
[root@LINUX ~]# su - paul
[paul@LINUX ~]$ whoami
Paul

Who

The who command will give you information about who is logged on the system.
[paul@LINUX ~]$ who
root tty1 2008-06-24 13:24
sandra pts/0 2008-06-24 14:05 (192.168.1.34)
paul pts/1 2008-06-24 16:23 (192.168.1.37)

who am i

With who am i the who command will display only the line pointing to your current
session.
[paul@LINUX ~]$ who am i
paul pts/1 2008-06-24 16:23 (192.168.1.34)

w

The w command shows you who is logged on and what they are doing.
$ w
05:13:36 up 3 min, 4 users, load average: 0.48, 0.72, 0.33
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
root tty1 - 05:11 2.00s 0.32s 0.27s find / -name shad
inge pts/0 192.168.1.33 05:12 0.00s 0.02s 0.02s -ksh
paul pts/2 192.168.1.34 05:13 25.00s 0.07s 0.04s top

id

The id command will give you your user id, primary group id, and a list of the groups that you belong to.

root@linux:~# id
uid=0(root) gid=0(root) groups=0(root)
root@linux:~# su - brel
brel@linux:~$ id
uid=1001(brel) gid=1001(brel) groups=1001(brel),1008(chanson),11578(wolf)