Linux Certifications

Basic Linux Commands and Utilities

May 1, 2008 Linux Configuration | admin @ 10:58 pm

Linux Command

This is som of linux command you should to know when you start to use the linux operating system. It is the basic for start to learning linux and it have more and hard command when you learn thoroughly on linux.

Command	Usage For
man	Get help.
cd	Move to a different directory.
pwd	Print working directory.
find	Search directories for matching files.
whereis	Find files from files directories.
locate	Locate files from locate’s database - locatedb.
updatedb	Update locatedb database.
whatis	Get command summaries.
makewhatis	Build the whatis database (db of command summaries).
apropos	Search for whatis database to get the program you want.
ls	List files and directories.
dir	List directories.
tree	List graphic directory.
cat	List, create, and combine files.
more	Read files.
less	Read files (allows scrolling, have more options than the more command).
head,tail	Read the beginning and the end of files.
touce	Create files.
rm	Delete files.
mkdir	Create directories.
rmdir	Removing directories.
mv	Rename files.
cp	Copy files.
ln	Create hard and symbolic links.
mc	Visual shell that display files.
grep, egrep, fgrep, zgrep	Search inside files (zgrep can search compressed files).
tar	Create archives file.
cpio	Copy files in and out of tar or cpio archives.
gzip, gunzip	Compress and uncompress files.
compress	Compress files.
ps	Process status command.
kill	Terminate a process.
Ctrl-z	Put a running program into background in bash shell.
fg	Bring back a program from background.
pine	A Linux mail program.
job	Get a list of suspended programs.
sc	A Linux spreadsheet program.
mount, umount	Mount or unmount a file system.
You can use man command for using each other command, example for using man command : man ps [press enter] >>> For help, how you can use ps command.