The admin1.1 of the Linux operation and maintenance way

Source: Internet
Author: User
Tags create directory parent directory

admin1.1

How to write a command line:

What is a command:

--linux command:

An instruction or program used in a class of functions;

Execution of the command depends on the interpreter (e.g. Bin/bash)

Categories of--LINUX commands:

-Internal command: part of the interpreter;

-External commands: Other programs outside the interpreter;

The general form of the command line:

-Command word--"option"--"parameter 1" "Parameter 2" ...

Example: "[Email protected]~" #ls-L/root/

Options: How to perform the control command;

---short options:-L,-A,-D,-c ...

---Multiple short options--composite options:-LH,-la,-ld ...

----long options:--help ...

Parameters: The command line action object, such as a directory or file;

-------------------------------------------------------

Quick Editing Tips:

TAB key AutoComplete: Can be filled with command words, options, parameters, file path, software name, service name.

Shortcut keys:

---ctrl+l----empty the entire screen;

---ctrl+u----emptied to the first line;

---ctrl+w----to delete a word back (whichever is the space);

---CTRL + C----Discard the currently edited command line;

---esc+.-----Paste the arguments of the previous command;

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Mount Mount Operation:

What is mounted:

Mount, Load:

Install devices such as discs, U-disks, partitions, and networked storage into a Linux directory.

Various command tools operate these devices by accessing the Linux directory;

Using the Mount command:

Format: Mount-----Device Path----mount point directory

Specific operation:

"[Email protected]~" #mkdir/abc create directory ABC;

"[Email protected]~" #ls/abc to view the catalogue ABC;

"[Email protected]~" #mount/dev/cdrom/abc mount device;

"[Email protected]~" #ls/ABC access to the device ABC content;

To unmount a mounted disc or partition:

#umount/abc/; unload equipment;

#ls/abc/; View the results;

----------------------------------------------------------、

To view and switch directories:

PWD---Purpose: view current working directory

CD----Purpose: Switch working directory format: CD "Destination Folder"

LS----Purpose: List document and attribute format: LS "option" "Directory or file name"

Common Command options:

-L: Display in long format;

-A: Displays all files, including hidden files that begin with the.

-D: Displays the properties of the directory itself; (cannot be used alone) (with L)

-H: Provides easy-to-read capacity units (often with L)

Use wildcard characters:

For indeterminate document names, denoted by special characters;

*: Any number of arbitrary characters;

? : single character;

Example: "[Email protected]/" #ls-D/m*

/media/mics/mnt

"[Email protected]/" #ls-d/m??

/mnt

For indeterminate document names, denoted by special characters;

"A-Z": one of multiple characters or continuous range, omitted if none;

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New Document

mkdir: Create directory; Format: mkdir "-P" "/Path/" Directory name

"-P": indicates that the parent directory is created together;

Example: "[Email protected]/" #mkdir-P/vod/movie/cartoon

"[Email protected]/" #ls-R/vod

-r: Indicates recursive display;

A nickname for the command:

#alias myls= ' ls-ld '; define a nickname;

#unalias Myls to cancel the nickname;

To create a text file:

#touch/opt/1.txt Create 1.txt text files;

Delete : Format: RM "option"---file or directory;

#rm/opt/1.txt

Common Command options:

-I query delete;-r recursive delete;-F: Forced delete (highest priority)

Rename: The path does not change the movement ;

Format: MV "Options"---original File---destination path

Cases:

#mv opt/1.txt/opt/nds01

Copy, copy: format: CP "Options"--Original file--target path

Common Command options:

-R: Recursive, copy directory is required to have this item;

-P: Maintain the original file attribute permissions;

Cases:

#mkdir/ABC

#cp-R/boot/opt

----------------------------------------------------

Using Vim (text editor)

Format: Vim "/directory/filename"

Command mode (only see)

Input mode (input)

Last-line mode (save and exit)

Cases:

#vim/opt/haxi.txt

Last-line mode Wq save and exit

Last-line mode q! Force quit, do not save














This article is from the Linux OPS blog, so be sure to keep this source http://13401400.blog.51cto.com/13391400/1976243

The admin1.1 of the Linux operation and maintenance way

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