Linux basic commands: Bash, history

1, Bash effect Introduction:

1. Command history

2, Pipeline, redirect

3. Command aliases

4. Command line editing

5. Command line expansion

6. File name Wildcard

7. Variables

8. Programming

2. Command line editing:

cursor Jump:

CTRL + A: Skip to the beginning of the command

Ctrl+e: Jump to the end of the command line

Ctrl+u: Delete the cursor to the beginning of the command line

CTRL+K: Delete the cursor to the end of the command line

Ctrl+l: Clear Screen

3. Command history:

Introduction to the History command:

View command history, default command history buffer is 1000 commands

1 . command format:

History [OPTION] ...

History followed by parameters and

2 . Command function:

View Historical Input Commands

3 . Command parameters:

-C: Empty command history

-D offset [n]: Delete command at specified position

-W: Save the Command history to the history file

4 . The use of command history tips :

!n : executes the nth command in the command history

!-n: Executes the last nth command in the command history

!! : Executes the previous command

String: Executes the last command in the command history to give the beginning of a string port

!$: Reference the last parameter of the previous command

Press the ESC key to release and then press.: reference the last parameter of the previous command

5 . Command instance:

1, history-d 3 Delete the 3rd command

[Email protected] ~]# history

1 VIM/ETC/VIMRC

2 Ifconfig

3 Vim/etc/sysconfig/network-scripts/ifcfg-eth0

4 vim/etc/resolv.conf

5 ifconfig eth0 up

[Email protected] ~]# history-d 3

[Email protected] ~]# history

1 VIM/ETC/VIMRC

2 Ifconfig

3 vim/etc/resolv.conf

4 Service Network restart

2, history-d 5 3 delete from 5th command after 3 command

[Email protected] ~]# history

1 VIM/ETC/VIMRC

2 Ifconfig

3 Vim/etc/sysconfig/network-scripts/ifcfg-eth0

4 vim/etc/resolv.conf

5 ifconfig eth0 up

6 Service Network restart

7 Ping 10.109.131.131

[Email protected] ~]# history-d 5 3

[Email protected] ~]# history

1 VIM/ETC/VIMRC

2 Ifconfig

3 Vim/etc/sysconfig/network-scripts/ifcfg-eth0

4 vim/etc/resolv.conf

5 Service Network Restart

6 Ping 10.109.131.131

7 Ifconfig

3.!4 View the 4th command in the history command     

[[email protected] ~]#! 4

Vim/etc/resolv.conf

This article is from the "Learn Linux history" blog, please be sure to keep this source http://woyaoxuelinux.blog.51cto.com/5663865/1860193

Linux basic commands: Bash, history