Some Linux Commands !!!

COMMAND	DESCRIPTION	SYNTAX
who	show who is logged on	who
su	change user ID	su <loginname>
passwd	to change your password	passwd
man	displays details of a command	man <command_name>
ls	list directory contents	ls
mkdir	make directories	mkdir <foldrname>
cd	changes directories	cd
cp	copy files and directories	cp a.txt copy.txt
mv	move files	cp a.txt <directory>
rm	remove files or directories	rm file1.txt
find	search for files in a directory	find file1.txt
pwd	print name of current working directory	pwd
history	prints recently used commands	history
mount	mount a file system or drive	mount /media/target
umount	unmount file systems or drive	unmount /media/target
poweroff	shut down the system	poweroff
reboot	restart the system	reboot
vim	A programmer’s text editor	vi hello.c
gedit	A text Editor	gedit hello.c
cal <month> <year>	display calendar	cal april 2012
date	displays the current date	date
echo	Print message on the terminal	echo "Welcome to the workshop"
printf	Print the formatted message on the terminal	printf "the amount is %d\n" 100
bc	A text based calculator	bc
xcalc	A graphical based calculator	xcalc
gcc	To compile C program file	gcc file1.c
g++	To compile C++ program file	g++ file1.c
ctrl+d	Quit command process