Linux Common commands

System:

Sync	Synchronizing data from memory to the hard disk (shutdown ago)
Shutdown-h Now Shutdown-r Now shutdown-h xxx	turn off the machine now Restart now xxx minutes after shutting down the machine
Reboot	Restart

Vi/vim Editor:

Vi/vim xxx	Edit XXX File
I (General mode) a o	Insert before cursor Insert after cursor Insert Next line
ESC (edit mode)	Edit mode returns to General mode
DD (General mode) d Digital D yy y digit y u p DW yw x x shift+g shift+g+1 shift+g+ number shift+^ shift+$	Delete the line where the cursor is located Delete (number) line after cursor Copy the line where the cursor is located Copy the line after the cursor (number) Revoke Paste Delete a word Copy a word del BACKSPACE move to end of page move to top of page move to (number) line move to the beginning of the line move to end of line
: (General mode)	Enter instruction mode
: Set nu (instruction mode) : Set Nonu	Show Line Numbers Hide Line Numbers
W Q ! %s/old character/new character/g	Save Exit Mandatory Execution Replace
/ N Shift+n	Find Find the next Find Previous

  User/Group: 

Useradd	Add user
Userdel-r	Delete command
whoami/who am I	View Current User
Id	Whether the user exists
passwd	New User Settings password
USERMOD-G User Group user name	To join a user to a user group
Su-user name	Switch users
Groupadd	Add Group
Groupdel	Delete a group
Groupmod-n New group name old group name	Renamed

 file directory: Create directory delete directory Td>

pwd	show current directory
ls-l	show directory contents
mkdir rmdir
CD directory CD: CD ~ CD/
CP 	copy file or directory
rm-rf	recursively delete contents in directory

 Search:

Find	Find a file or directory
Grep	The lines within the file that match the search string

 Process:

Ps-aux	Show All Processes
Kill-9 Process Number	Force Kill Process
Netstat-anp	Display Network statistics

 Compression/Decompression:

gzip gunzip	Compact. GZ unzip. GZ
zip unzip	compress. zip unzip. zip
TAR-ZCVF xxx.tar.gz< /span>tar-zxvf xxx.tar.gz -c generate. Tar package files -v Show details -f Specify the compressed file name -z packaging and compressing the -x unpacking. tar file	compression tar.gz unzip tar.gz

 file permissions:

chmod three-digit	Modify File/directory permissions
CHGRP Final Destination Group files/directories	Modify a file/directory to belong to a group
Chown End user is modified file chown End User: Modified file for landing user group	Modify File/directory owner
Umask	View default Authorization Rules

 RPM:

Rpm-qa	To query all installed RPM packages
RPM-IVH RMP Package Full path name	Installing the RMP Package
RPM-E RMP Package Full path name	Uninstalling the RMP Package

        

Linux Common commands