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This article will explain in detail how to use the bash command in the linux system. The content of the article is of high quality, so the editor will share it with you for reference. I hope you will have some understanding of the relevant knowledge after reading this article.

What is Linux system Linux is a free-to-use and free-spread UNIX-like operating system, is a POSIX-based multi-user, multi-task, multi-threaded and multi-CPU operating system, using Linux can run major Unix tools, applications and network protocols.

Complete usage of tab key

When we click on the tab completion command or file name

When we double-click tab to list all the relevant options

Check out the following example

[root@localhost /] # cd / tmp

[root@localhost tmp] # pwd

/ tmp

[root@localhost tmp] # cd /

[root@localhost /] # pwd

/

[root@localhost /] # cd-

/ tmp

[root@localhost tmp] # pwd

/ tmp

Esc+.

Examples of usage

First touch a file, then edit the file

Touch abcdefghijk

Type vi, and then Esc+. Find out if abcdefghijk has appeared behind vi.

Escape character usage

Some commands in the system are alias functions, such as rm, mv, etc., which are actually rm-I and mv-I.

You can use the alias command to view system aliases, such as the following system default aliases.

[root@localhost testdir] # alias

Alias cp='cp-i'

Alias egrep='egrep-color=auto'

Alias fgrep='fgrep-color=auto'

Alias grep='grep-color=auto'

Alias l.='ls-d. *-color=auto'

Alias ll='ls-l-color=auto'

Alias ls='ls-color=auto'

Alias mv='mv-i'

Alias rm='rm-i'

Alias which='alias | / usr/bin/which-tty-only-read-alias-show-dot-show-tilde'

Sometimes when we delete a file, the following prompt appears, which requires us to confirm it one by one. The reason is that rm defaults to rm-I.

[root@localhost testdir] # cd dir1

[root@localhost dir1] # ls

File1 file2 file3 file4

[root@localhost dir1] # rm file1 file2 file3 file4rm: remove regular empty file? .ile1?. Y

Rm: remove regular empty file? .ile2?. Y

Rm: remove regular empty file? .ile3?. Y

Rm: remove regular empty file? .ile4?. Y

We can use the transfer character to invalidate the alias, using the following, the deletion will no longer be prompted to confirm.

[root@localhost testdir] # cd dir1

[root@localhost dir1] # ls

File1 file2 file3 file4

[root@localhost dir1] #\ rm file1 file2 file3 file4

On how to use the bash command in the linux system to share here, I hope the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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