2016/8/19 Linux Common commands: Help commands, user management commands, compression decompression commands

1. Getting Help information: Man

Man ls: Get help with ls command

Man services: View the Help information for profile services, directly add the file name, no absolute path required

Help: 1 indicates help for the command, 5 indicates help for the configuration file

Mans 1 passwd

2. View the command description: Whatis

3. Production See profile information: Apropos profile Name

3. Get help with Shell built-in commands:

Help umask: View the umask command's helpful information

4. Options for viewing commands: Command--help

4. Add a new User: Useradd

Useradd Weigy

5. Set User password: passwd

passwd User Name

6. View logged in user information: WHO

7. View logged in User details: W

8. zip file: gzip

gzip [file]

9. Unzip the. Gz Zip file: gunzip

gunzip [Compressed file]

10. Package directory: TAR, compressed after file name *.tar.gz

Tar options [-ZCF] [file name after compression] [directory]

Compression usage:

-C Packaging

-V Show More information

-F Specify File name

-Z Package simultaneous compression

Example: TAR-ZCF Japan.tar.gz Japan

Decompression usage

-X Unpack the package

-V Show More information

-F Specify Unzip file

-Z Decompression

Example: TAR-ZXVF Japan.tar.gz

11. Compress files or directories: Zip, compressed after file name *.zip

Zip option [-r] [filename after compression] [file or directory]

-R: Compressed directory

12. Unzip the. zip file: Unzip

Unzip [compressed file]

13. Compressed files: bzip2, compressed after file name *.bz2

BZIP2 option [-K] [file]

-K preserves source files after generating compressed files

14. Unzip:bunzip2

BUNZIP2 option [-K] [compressed file]

-K retain original file after decompression

2016/8/19 Linux Common commands: Help commands, user management commands, compression decompression commands