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Operations related to Red Hat File

2025-01-18 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Servers >

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Red Hat Operation (3) File mkdir

This is to create a path.

Can be created one at a time.

You can also add-p directly.

Mkdir-p

Delete directory

Rmdir must be removed from the bottom

Rm-rf

Installation

Yum install-y

Tree

This can show the relationship of the file in a tree diagram.

Cd command (change directory)

This is the command to switch to the folder. It usually is.

Cd / /

Of course, we have to distinguish between cd, and this is the current directory. Cd / this is the root directory.

To type cd directly is to switch directly to the home directory. Equivalent to cd, of course, plus a tilde, refers to the current user's home directory.

~

Cd ~ this is to change to the specified user's home directory.

However, cd ~ / this represents the folder under the current user's home directory.

-

This means to change to the last directory.

However, the last time this concept should be noted, switching twice will return to the original directory, because the original directory is the last time.

The relationship of suffixes in Linux

In Linux, most files have nothing to do with suffixes.

View file type file

File

Stat (View File Properties)

Stat

Create a document

The touch path format is similar to the previous one.

If there is, it will be updated, and if not, the file will be created.

Multiple files can be created at the same time.

Touch {{number of beginnings}.. {number of terminations}} start and end

Delete a file

Rm

Rm-I

Rm-f forced deletion

Rm-rf recursive deletion

Rm-rf / *

Alias

Alias View alias

Alias Settin

Alias

Remove alias

Unalias

Ifconfig

View the network card command.

Ifconfig

Wc

Count the number of lines, characters and other commands.

Wc

-l

How many lines to view

-c

Check how many words there are.

File lines, file words, file characters, file name.

The words here are separated by spaces.

Link (ln) soft connection

This is a shortcut.

Ln-s 2 is the soft connection of 1.

Delete

Just use rm-rf

View the contents of the file cat

This is only suitable for viewing small files.

Cat

More

This is suitable for viewing large files.

More

Press enter to display one line at a time. Press the space to display one screen at a time.

But it can't look back with a command.

Less

Less

Keys: pgup,pgon,home,end these keys.

Query keywords are supported

: /

Press n to find the next one and N to find the previous one.

Head

View the first few lines of the file by default

Head-n

Tail

View the last ten lines by default

Display in the same order as the source file.

The format is the same as head.

Tail-n + 38 means that it starts at line 38 and goes to the last line.

Tail-f real-time view

It can be written as tailf.

Cp

Cp-copy something from path 1 to path 2

If the path file does not exist, it is copied and renamed by default.

Multiple file copy

The last file path is the destination.

Cp

When you copy a file, you do not copy the attributes.

Add the parameter-p, and you can copy it.

Force copy directory

Cp-rf recursively forces the copy of the directory.

Cp-rfp is recursive replication, the kind of depth.

Package replication

Cp-a this is a direct deep copy.

Mv cut and paste

Mv-/ /

If you don't have the directory, create it.

Mv is the name of the file that renames the current directory.

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