Useful Linux commands

Useful Commands – Linux

Command	Purpose	Usage
w	Show who is logged on and what they are doing, the load average and uptime.	w.png
uptime	Tell how long the system has been running.
top	display Linux processes
ls	list directory contents
ll	list directory contents with details
cp	copy files and directories
mv	move (rename) files
rm	remove (delete) files or directories
vi	Vi IMproved, a programmers text editor
grep	grep, egrep, fgrep – print lines matching a pattern
find	search for files in a directory hierarchy	find.png
vim	vim – Vi IMproved, a programmers text editor
pico	simple text editor in the style of the Alpine Composer	pico.png
cat	concatenate files and print on the standard output	cat.png
tail	output the last part of files	tail.png
more	file perusal filter for crt viewing	more.png
less	opposite of more	less.png
touch	change file timestamps
chown	change file owner and group
chmod	change file mode bits
zip	package and compress (archive) files	zip.png
unzip	list, test and extract compressed files in a ZIP archive	unzip.png
gzip	gzip, gunzip, zcat – compress or expand files	gzip.png
gunzip	gzip, gunzip, zcat – compress or expand files	gunzip.png
tar	an archiving utility	tar.png
wget	The non-interactive network downloader.	wget.png
yum	yum is an interactive, rpm based, package manager.	yum.png
apt-get	APT package handling utility — command-line interface	apt-get.png
du	estimate file space usage
df	report file system disk space usage