Linux operating system and common commands

Get help with the use of commands

Internal command: [root]:help command

external command: [Root]:command--help

Online Documentation: INFO COMMAND

Doc document: [Root]:cd/usr/share/doc

Help Manual (Manual)

[Root]:man COMMAND

Help manual sub-chapters

1. User commands (/bin,/usr/bin,/usr/local/bin)

2. System call

3. Library users

4. Special files (device files [as access to equipment])

5. File format (configuration file syntax)

6. Games

7. Miscellaneous

8. Administrative commands (usually only administrators can use commands:/sbin,/usr/sbin,/usr/local/sbin)

View the section of [specified information (or command)] that exists: [Root]:whatis command

View [Specify information (or command)] Help in the first section: [Root]:man 1 COMMAND

Help format

Name: Introduction to command names and features

Synopsis: Usage notes, available options

<>: Required Parameters

[]: Optional

| : Choose one More

{}: Grouping

DESCRIPTION: Detailed description

Options: An optional explanation

EXAMPLES: Using the example

See ALSO: Another reference

Files: The configuration file associated with this command

Flip Screen

Page Backward: SPACEBAR

Turn One page forward: B key

Turn back one line: Enter

One page ahead: K Key

Search Help Content

/keyword: Searching from the head down

? KEYWORD: Search from tail up

N: Next Search Result

N: Previous Search results

Q Key: Exit Help screen

This article is from the "Crescent" blog, be sure to keep this source http://yueya.blog.51cto.com/10663176/1689594

Linux operating system and common commands