Linux Cheatsheet (for beginners)

ls

lists contents of a directory just like dir under DOS

cat

concatenate and print files

grep

searches for specific results with pattern

clear

clear the terminal

cd

change directory

pwd

print the working directory

mkdir

creates (make) a directory

rmdir

delete (remove) a directory

man

prints the manual pages of a specific tool

which

returns the path to an executable

find

searches for files in a directory hierarchy

locate

searches for files in a system using a prebuilt database

who / whoami

display all logged in users / current user

id

returns user ID

chmod

changes permissions and mode flags of a file or directory

uname

prints operating system's name (unix name)

ifconfig

network interface configuration of the system

ip

display and configure network parameters

sudo / su

executes a command as a different user
by default the superuser
open a sessions a s superuser

ps

lists the running processes status

kill

sends a kill signal to a process

head

view the first lines of any text

mv

move files

cp

copy files