Some common basic liunx commands:

Ls-AL: Display Properties of all files
PWD displays the current path
CD-returns the last directory
Cd ~ Returns the home directory.
Date S: set the time and date
Cal display calendar Cal 2006
BC Calculator
Man & info help manual
Locale displays the current font
All available fonts for locale-
Sync writes data synchronously to the hard disk
Shutdonw-H now & Half & poweroff Shutdown
Reboot restart
Startx & init 5 enters the graphic interface
/Work &? Work: Search for document content up and down
CP copy CP filename
Rm delete file Rm-RF filename force delete file
Rmdir Delete folder
Rename MV 123.txt 222.txt
Create a folder using mkdir
Touch file creation update current time
Cat is displayed from the first line
Cat & brvbarmore Paging
NL adds a row number before the content
More & less side flip
Head-N filename: displays row N content
Tail-N filename: The last n rows of content displayed
Od display non-pure document
DF-H display partition Space
Du: displays the directory or file size.
Fdisk partition settings
Fdisk-L/dev/hda display hard disk partition status
Mkfs creates various file systems mkfs-T ext3/dev/ram15
Fsck checks and fixes Linux Files
Whereis SEARCH Command
Locate search
Find find/-name "***.***"
Which viewing tool
Whoami displays the current user
Clear Screen
History history! 55. Execute 55th commands
Cpio backup file