Shortcut keys and help in Linux

#### ##### #1 . Virtual Console ##### #######

Ctrl+alt+f (1|7) into the graph

Ctrl+alt+f (2~6) into the Virtual Console

Red hat Enterprise Linux Server 7.0 (Maipo) # # system version

Kernel 3.10.0-123.el7.x86_64 on a x86_64 # # kernel version , number of system bits

Desktop $ Login:root # # Login user name Input

Password: # # Password input no echo

######### #2. start bas h###########

1.applications>utilities>terminal

2. right mouse button ----->open in terminal

3.gnome-terminal

4. Exit : Exit | ctrl+d

######## #3. re-initialization of the system ########

Restart

Reboot | Init 6 |shutdown-r Now

Shutdown

Poweroff | Init 0 | Shutdow-h now

# #补充 # #

v # 0-Stop (never set the Initdefault to 0)

# 1 -Single user mode, only root for maintenance

# 2-Multi-user, no NFS ( No network multi-user )

# 3-Full multi-user mode (standard run level) ( with network multi-user )

# 4- user definable

# 5-x11 (Xwindow), start to enter the X-window system ( with graphics and network )

# 6-reboot (never set Initdefault to 6)

########## #4. Shortcut keys in Linux ################

around # #一个字符一个字符移动

Ctrl + around # #一个字一个字移动

+ a # #光标移动到行首

+ e # #光标移动到行尾

+ u # #光标所在位置删除到行首

+ k # #光标所在位置删除到行尾

+ r+ keyword # #调出最近一条含有关键字的命令

+ left | Right # #光标移动以单词为单位

+ C # #撤销以输入的命令

+ d # #关闭当前环境

+ SHIFT + t # #在现有shell中重新打开一个table

+ SHIFT + Pageup|pagedown # #切换table

+ ALT + L # # Lock Screen

+ ALT + Upper | # #切换工作界面

Other shortcut keys

Table The table key in the system can automatically complement the existing command, the file name and the parameters of some commands

A+tab x2 Show all commands in a system

########### #5. Help ############## in Linux

1) Help

Whatis Command # #查看命令的功能

command --help # #查看命令的帮助

[] # #选择加入的内容, can be added without

... # #加入的内容个数任意

< > # #内容在命令执行过程当中必须要加

2) Mans

Man-->manual # # #man是手册缩写

Man Man # # # # #查看man命令的帮助

Man passwd # # #查看passwd命令的帮助

# # # #man的级别 #######

1 system commands

2 System interface

3 Function libraries

4 special files, such as device files

5 files

6 games

7 Package for the system

8 System Administration Commands

9 cores

Man 5 passed # Help #查看/etc/passwd file

Man 1 Passed # #查看passwd命令的帮助, 1 can be omitted

##### #man页面的快捷方式 #########

down key # #向上或向下一行

Pageup|pagedown # #向下一个屏幕或者向上一个屏幕

D|u # #向下或者向上半个屏幕

G|GG # #跳转页面到man最下面或最上面

/keyword # #搜索关键字, keywords are highlighted, n is matched, n up

Q # #退出帮助页面

Shortcut keys and help in Linux