Linux basic commands and shortcuts (unfinished version)

Summary of commands: 100

mkdir command to create a directory mkdir directory

Ls-l (long) d (directory) displays the directory or file name list

CD switch directory hierarchy change directory

echo Print out content (printf)

Vi/vim Notepad Editor Command mode (: wq:q: q! : wq!) <===> insert mode (ESC Toggle Command mode)

W Write Q Quit! Forced

Cat View File Contents

CP-APR Copy files or directories

MV Move directory or rename (rename command)

RM Delete file or directory-F Force Delete file-R recursively delete-FR delete specified directories and files

RmDir Delete empty directory, chicken command

Head Header Display file header-N rows-number of rows default display first 10 rows

Tail tail display file trailing-n lines-line number default display trailing 10 lines

grep* (filtering) One of the core commands (old three of the Musketeers) excludes-V "Exclude" direct filter "desired" –E filter multiple Strings –I filter is case insensitive

Egrep equivalent to-E

Sed* take all kinds of content (the third Swordsman's Dick)-N cancels the default output P=print D=delete

Alias display aliases

Unalias Canceling aliases

Which view path Whereis,locate,find

find* view command-type (f D)-name "ddd" Search by name-mtime by the modified time

Tree view directory Structure

Xargs is used to give the output of the find/ls to the back processing

SEQ Print number sequence echo{1..5}

Man view commands and configuration file Help

Touch to create a file or modify the timestamp of a file

PWD Displays the current path

Vimdiff File Comparison Tool

WHOAMI viewing the current command line end user

Su Switch User role, note to take-

Historical View history-C (Clear All)-D (Specify line number Delete)

Chkconfig View the command to set the boot-up software

Netstat Viewing network status

Symbol:

; multiple command separators

/root or path delimiter

> Standard output redirection (data flow in the direction of the arrow), overwriting the original file

>> Follow-up orientation (data flow in the direction of arrows), append content at the end of the original file content

< or < standard input redirection: Input redirection courage to change the input of the command, specify the input, followed by the file name

<< or << input redirection: followed by a string to indicate "input end" or ctrl+d to end the input

.. Top level Directory

. Current directory

| The pipeline passes the output of the previous command to the next command to continue execution

{} with echo print sequence echo {1..6}

The number separates different commands.

/indicates the delimiter of the root or path

The VI editor shortcuts

99gg line number plus GG, quick to reach 99 lines

YY Copy a whole line

P Paste

: Set NU Displays line number

Shortcut keys:

!=101 represents a 101-line command in the execution history

！！ Execute the most recent command

！ C Execute the most recent command starting with C

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Linux basic commands and shortcuts (unfinished version)