The idea of delving into the command line of Linux can sometimes be a daunting proposition for a new user. Below are a few select commands that should help in getting your feet wet.
Change your account's password:
passwd
Display the security groups for which you are a member:
groups
Determine present working directory:
pwd
Display the cumulative size of files under present working directory:
du -sh
Display a list of files in the present working directory:
ls
Display information about free system memory (in megabytes):
free -m
Display information about free disk space:
df -h
Display the length of time that the machine has been booted:
uptime
Display a list of currently logged in users:
w
Clear the terminal:
clear