View and edit commands that have been executed in the Linux command terminal

History

The history command can be used to display commands that have been executed, or to perform the required commands according to the treatment shown

N shows n recent records

-A Add records

-R reads records but does not add content records

-W Overwrite original history file

-C purge Record

-d< number >[n] Delete specified n records

-n< File > read the specified file

-r< files > read files but not record

-w< files > Overwrite existing files

Example 1

The code is as follows:

[Root@redhat ~]# History #查看所有执行过的命令

1 ls

2 pwd

3 fc-l

4 history

The code is as follows:

[Root@redhat ~]# History 2 #显示2条

4 history

5 History 2

The code is as follows:

[Root@redhat ~]#! 4 #执行编号是4的命令, note exclamation mark

History

1 ls

2 pwd

3 fc-l

4 history

5 History 2

6 history

The code is as follows:

[Root@redhat ~]# history-c #清除历史记录

!$ refers to the last argument of the previous command

The code is as follows:

[Tank@localhost workspace]$ Ls-all

Total dosage 1060

Drwxrwxr-x. Tank tank 4096 August 6 16:26.

DRWX------. Tank tank 4096 August 15 16:13.

-rw-r--r--1 root 2466 July 18:02 1.html

Drwxr-xr-x 7 tank tank 4096 July 03:02 CKEditor

Drwxr-xr-x. 2 tank tank 4096 May 00:08 Database

The code is as follows:

[Tank@localhost workspace]$!$ #取得-all

-all

BASH:-all:command not found

Example 2

The code is as follows:

[Root@redhat ~]#! -N #执行倒数第N条命令

[Root@redhat ~]#!! #执行上一条命令

Fc

The FC command can edit the commands that have been executed and let them be executed in batches

-1 List all orders between the first and last instruction

-N does not display number

-R Reverse Sort

-e< Text Editor > Specify text Editor edit, Default VI

-s< instruction > select command execution

Example 1

The code is as follows:

[Root@redhat ~]# fc-l #查看执行过的命令, root history, very similar

348 eval echo "AAA" ls

349 eval echo "AAA"; LS

The EXEC LS

351 apt-get Install MySQL

352 apt-get Install Mysql-server

353 exit

354 expr 4%6

355 Expr 4% 6

356 Expr 4<6

357 Expr 4 ' < ' 6

358 Expr 6 ' + ' 5

359 Expr 6 ' * ' 5

360 expr 6 ' > ' 5

361 Fc-l

362 Mans FC

363 FC--help

The code is as follows:

[Root@redhat ~]# fc-s 358 #执行第358个命令

Expr 6 ' + ' 5

11

The code is as follows:

[Root@redhat ~]# FC 358 #编辑第358个命令