Linux common commands (common commands for Linux)

Linux common commands (Common Commands for Linux)

1. Statement, this article only write based on the Bash shell commonly used commands, if you encounter the command in the course of use, may be updated, the command has been replaced, please go to the official WIKI search or through the man manual to view.

2. Effectively combine command options and command parameters according to the actual situation:

command name [command arguments] [command object]

Note that the command name · Command Parameters · Between command objects, use the spacebar to separate them. Command objects generally refer to the target to be processed (normal file/directory file/user, etc.), command parameters can be used in long format or short format, respectively, "--" "-" to do the prefix, the command parameters will vary with the command and the environment.

3. Common commands are listed below:

A. Help command

Man---can be used to view specific available parameters and object formats

Help--View the assistance information

B. Directory Operations Command

LS--Display information about files and directories

CD-and switch directories

PWD--Displays the path to the current directory (absolute path shown)

---estimate file space usage or print capacity

mkdir-New Directory

RM---Delete files or directories

MV--Remove or rename a file or directory

CP---Copy files or directories, add parameter "-r" to the copy directory

diff--Compare the list of files in the catalog or the file contents are the same

Tree---Displays the current directory in a structure, if no command is required to install

　　

C. text File Operations Command

Touch-To create an empty file, change the timestamp of the file

FILE-to-View files types

Stat--View file access time, modification time, change time

Cat--View Plain text file contents (show entire file contents at once), merge contents of multiple files into one file, content of merged file still exists

Head--View the top n rows of a file

Tail--View the following n rows of a file

More--View text files (longer, use SPACEBAR to move Down)

OD--to the file contents in a special way output (binary)

WC---statistics of the number of rows, words, bytes, etc. of the content in the file

TR--to replace compression and deletion of characters from standard input

echo---Displays a piece of text, or you can enter content into a file with a redirect

Cut-and-remove sections of each line in the file, extract the required characters in columns, and reference man for specific parameters

　　

Linux common commands (common commands for Linux)