Linux Base Command completion

1. History: You can view the command Chronicle, and each command will have a serial number marked in front of it.

Grammar:

history[Options]

The meanings of the command options are as follows:

Options	Option meaning
-C	Clear command history
-W	Let bash immediately write the history command from memory to the. bash_history file
-A	Writes the current New History command to the. bash_history file
N	Displays the last n command history, and N represents the number
-R	Read the contents of the history file and use them as the current history

Examples of using command history in Linux systems are as follows:

Example	Describe
!!	Run the previous command
!6	Run a 6th command
!8/test	Run the 8th command and add/test after the command
!？ Cf?	Run a command that contains a CF string
!ls	Run the previous LS command (or a history command starting with LS)
!ls:s/cf/g	Run the previous LS command, where CF is replaced with G
Fc	Edit and run the previous history command
FC 6	Edit and run the 6th history command
^boot^roo^	Quick replacement. Run after replacing boot of the last command with root
!-5	Run the penultimate command of the 5th
!$	Run the last parameter of the previous command

Linux Base Command completion