Astazi am facut

Adauga user in linux

useradd newuser
passwd newuser

Setare user in linux cu drepturi de root

in /etc/passwd

newuser :x:0:502::/home/newuser:/bin/bash

Stergere user

userdel newuser

userdel -r newuser ( sterge si home directory)

Modificare user

usermod

•-d home directory
•-s starting program (shell)
•-p password
•-g (primary group assigned to the users)
•-G (Other groups the user belongs to)


=========================
Afisarea doar cuvant care incepe cu 192.x.x.x din fisier text dat

grep -oh "\w*192.\w*.\w*.\w*" fisier.txt

pentru a afisa doar civintele unice
|sort|unique -c