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How do I change permissions in Linux for a folder and its subfolders/files?

Gautam Ramesh9614-Jul-2023

How do I change permissions in Linux for a folder and its subfolders/files?

exception handlingfile linux 
Updated on 15-Jul-2023
Gautam Ramesh

Gautam Ramesh

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I am Gautam Ramesh from Uttar Pradesh. Have completed my B. Tech. course from MNNIT campus Prayagraj in 2022. I have good knowledge of computer networking.

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Aryan Kumar

Aryan Kumar

15-Jul-2023

Sure, there are a few ways to change permissions in Linux for a folder and its subfolders/files. Here are two methods:

Method 1: Using the chmod command

The chmod command is a command-line tool that can be used to change the permissions of files and directories. To change the permissions of a folder and its subfolders/files, you can use the following syntax:

chmod <permissions> <directory_path>

For example, to change the permissions of the directory /home/user/my_directory to read, write, and execute for the owner, read and execute for the group, and no permissions for others, you would run the following command:

chmod 755 /home/user/my_directory

The <permissions> parameter can be a combination of the following characters:

  • r: Read permission
  • w: Write permission
  • x: Execute permission

The <directory_path> parameter is the path to the directory that you want to change the permissions for.

Method 2: Using the chown command

The chown command is a command-line tool that can be used to change the ownership of files and directories. To change the ownership of a folder and its subfolders/files, you can use the following syntax:

chown <owner> <group> <directory_path>

For example, to change the ownership of the directory /home/user/my_directory to the user user and the group group, you would run the following command:

chown user:group /home/user/my_directory

The <owner> parameter is the name of the user that you want to give ownership of the directory to.

The <group> parameter is the name of the group that you want to give ownership of the directory to.

Method 3: Using the sudo command

If you are not the owner of the directory, you can use the sudo command to change the permissions. To change the permissions of a directory and its subfolders/files using the sudo command, you can use the following syntax:

sudo chmod <permissions> <directory_path>

For example, to change the permissions of the directory /home/user/my_directory to read, write, and execute for the owner, read and execute for the group, and no permissions for others, you would run the following command:

sudo chmod 755 /home/user/my_directory

The sudo command allows you to run commands as the root user, which has full permissions on the system.

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