Change Ubuntu File Permissions with Chmod

To change the permissions of files in an Ubuntu system, you can use the chmod command. This command allows users to modify the permissions of files or directories to allow or restrict reading, writing, and executing operations on them.

To change the file permissions using the chmod command, you can follow these steps:

1. Open the terminal.
2. change the permission of a file
3. example document

chmod u+r example.txt

1. Different permissions can be set using different options, for example:

1. u stands for the file owner, g stands for the file group, and o stands for other users.
2. “+” indicates adding permissions, “-” indicates removing permissions, and “=” indicates setting permissions.
3. In English, ‘r’ stands for read permission, ‘w’ stands for write permission, and ‘x’ stands for execute permission.

For example, to set the owner’s read, write, and execute permissions for the file example.txt, you can use the following command:

chmod u+rwx example.txt

Please be aware that changing file permissions may have an impact on the system’s security, so please proceed with caution.