I. Summary of common LINUX commands

1. Linux basic commands

Who, which, basename, dirname, echo, type, hash, Whatis, Makewhatis, Mans, info, help, LS, cd,pwd, mkdir, RmDir, Touch, RM, Date, Hwcolck, Cal, shutdown, reboot, TTY

1 Who:show who was logged on, the print information about the users who was currently logged in.

Displays the logged on user.

2 Which:show The full path of (shell) commands

which PWD, which shutdown

3 Basename:print name with any leading directory components removed.

Basename/usr/bin/sort, Output:sort

4 dirname:strip non-directory suffix from file name

Dirname/usr/bin/sort, Output:/usr/bin

5 command substitution

": Strong references, variables are not replaced;

"": If the reference, the variable can be replaced;

": Command applied, similar to $ ()

6 Echo:display A line of text, Echo

Echo $PATH, Output:/usr/lib64/qt-3.3/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

Echo ' $PATH ', Output: $PATH

echo "Zhu Biao", Output:zhu Biao

echo ' Date +%f ' (Echo $ (date +%f)), output:2016-10-26

7 type:display information about command type

Type CD, OUTPUT:CD is a shell builtin

Type shutdown, Output:shutdown Is/sbin/shutdown, if shutdown has been executed, will be added to the hash database, then: Shutdown is hashed (/sbin/shutdown)

8 Hash:rember or Display program loacations, displays the hash database, the number of programs executed, and the location.

9 Whatis: A concise description of the function of a command, which is in the section of the manual document

Whatis shutdown, Output:

Shutdown (2)-Shut down part of a Full-duplex connection
Shutdown (3p)-Shut down socket send and receive operations
Shutdown (8)-Bring the system down

Ten makewhatis:create the Whatis datebase

Each shell command is divided into internal commands and external commands

Internal command assistance: Help command

External command help: Command--help, man command, Info command

Man:man [Section] command, Manual, command, configuration file format, library call and other help documents

[Section]:

1:user Commands
2:system Calls
3:c Library Functions
4:devices and Special Files
5:file Formats and conventions
6:games et. Al.
7:miscellanea
8:system Administrations Tools and deamons

Info: Get online Help documentation, using the same method as man

Help:shell internal Command Help documentation

Help LS

{A, B}: Expandable

{a,b}/{x,y}: a/x a/y b/x b/y

{a,b}-heburn-{x,y}: a-heburn-x a-heburn-y b-heburn-x b-heburn-y

Ls:list Directory Contents

Ls/home/zhubiao

Cd:change the Shell working directory

Cd/home/zhubiao

CD ~: Back to the user home directory

CD ~zhubiao: Back to User Zhubiao home directory

CD-: Go back to the previous directory

Pwd:print working Directory

Mkdir:make Directories

Create Directories/mnt/linux/bin,/mnt/linux/sbin,/mnt/bin,/mnt/sbin can use the following commands:

Mkdir-pv/mnt{/linux/{bin/sbin},bin,sbin}

Rmdir:remove Empty Diretories

Rmdir/mnt

Rmdir-p/a/b

Rm:remove Files or directories

Rm-rf/a/b/zhubiao

Touch: Create a file

Date:print or set the system date and time

Date [MMDDHHMM[[CC]YY][.SS]:

Date 10262318 Sets the system time to October 26 23:18,

Date 102623182016.33 Sets the system time to 2016-10-26 23:18:33

Date +%f, output:2016-10-26

Date +%t, output:23:18:33

Hwclock:query or set the Hadway clock (RTC)

Hwclock--set--date= "102616 23:12:10"

Hwclock-s (--hctosys)

Hwclock-w (--SYSTOHC)

Cal:display a calendar

Cal, Output:

October 2016
Su Mo Tu We Th Fr Sa
1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31

Shutdown:bring the system down

Shutdown-h now

Shutdown-r +5

Reboot:reboot, Halt, poweroff-reboot or stop the system

Ternial

A. Virtual Terminal tty#

B. Physical Terminal console

C. Pseudo Terminal pts/#

　　

I. Summary of common LINUX commands