Brief introduction of Linux command first use

1The  CD command CD command is often used to change the directory [email protected]:~# cd/home/user/Desktop [email protected]:~# CD: Back to previous level [email protected]:~# CD. /.. Return to level Two directory if you do not know the working directory, PWD directly displays the current directory path [email protected]:~# pwd2the . ls command ls command is a list of directory contents (files or folders) [email protected]:~# Lsls-l command to list directory contents (files or folders) in detail mode3the . uname command Displays the machine name, operating system and kernel details [email protected]:~# Unamelinux Tecmint3.8.0- +-generic # --ubuntu SMP Wed May1  -: $: -Utc -i686 i686 i686 gnu/Linux4 . mkdir command mkdir Create a new directory [email protected]:~# mkdir Index creates a folder for index mkdir-p Create directory tree [email protected]:~# mkdir-p/tmp/dir1/Dir2 Create a Dir1 folder under the TMP directory and create a Dir2 folder under Dir1 folder5 . rmdir command rmdir Delete directory [email protected]:~# rmdir Index Delete index folder RM-RF Delete directory at the same time delete the contents of [email protected]:~# RM-RF Dir1 Remove a call'Dir1'directory and delete its contents at the same time. RM-RF Dir1 dir2[email protected]:~# RM-RF Dir1 DIR2 Delete two directories and their contents at the same time6 . VI fight a file without and create a file [email protected]:~# VI Index.txt First press ESC key back to the command mode, vi save the file has different options, corresponding to different commands, you can choose one from the following command: W Save the file but do not exit Vi:w files will be modified to save to file, do not exit vi:w !force save, do not exit Vi:wq save file and exit Vi:wq!force save file and exit Vi:q do not save file, exit Vi:q!do not save the file, Force exit Vi:e!Discard all modifications and last enter. 7 . Touch to create a nonexistent file [email protected]:~# Touch index.html created a index.html file 8. RM- F Delete file [email protected]:~# RM-F index.html Delete a index.html file9 . CP copy files, folders [email protected]:~# CP index.php index2.php copied a index2.php file [email protected]:~# CP-a dir1 dir2 copy a directory [email protected]:~# cp-a/tmp/Dir1. Copy directory to current working directory [email protected]:~# dir/* . Copy all files under directory to current working directory 10.mv Mobile directory [email protected]:~# mv Dir1 DIR3 If dir3 exists, move Dir1 directory to dir3 directory; If Dir3 does not exist, The name of the Dir1 directory is changed to DIR3; [Email protected]:~# mv index.php index3.php Change index.php's file name to index3.php

11. Packaging compression, decompression

[Email protected]:~# bzip2 file1  compress a file named File1

Compressed file is file1.bz2

Bunzip file1,bz2  Extract a file named file1.bz2

gzip File1 compress a file called ' File1 '

Compressed file is file1.gz

Gunzip file1.gz Extract a file called ' file1.gz '

TAR-CVFJ archive.tar.bz2 dir1    Create a compressed package in BZIP2 format

TAR-XVFJ archive.tar.bz2    Extract a compressed package in BZIP2 format

TAR-CVFZ archive.tar.gz dir1     Create a zipped package in gzip format

TAR-XVFZ archive.tar.gz     Unzip a compressed package in gzip format

Brief introduction of Linux command first use