File and directory operations in Linux 01

File and directory operations in Linux 01 "Simple Record"

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1. Related Operations for Directories

   . Represents this Layer directory

   .. Represents a previous level directory

• Represents a previous working directory

~ Represents the home folder where the current user identity resides

~account represents the user's folder (account name)

To switch accounts:

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command example:

Command	Role
Cd:	Switch directories
Pwd	Show current directory pwd–p get the correct directory name
Mkdir	Create a new directory, Mkdir-p Test1/test2/test3/test4 Creating a multilevel directory
RmDir	Delete an empty directory
Rm	Delete Entire Directory Rm–r Test
Mv	Files can be moved between different directories

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1. Path variable: $PATH

   Echo $PATH

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IFCONIFG: Querying IP addresses

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1. CHGRP: Change the user group that the file belongs to;
2. Chown: Change the file owner;
3. chmod: Changing the permissions of a file

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I. Change the owning user group: CHGRP

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File and directory operations in Linux 01