How to Manage File Permissions in Linux

 Introduction

File permissions control access to files and directories. Understanding them is crucial for security and proper system operation.

Step 1: Check File Permissions

ls -l filename

➡️ Displays permissions, owner, and group.

Step 2: Change Permissions with chmod

chmod 755 script.sh

➡️ Grants read, write, and execute permissions to the owner, and read/execute to others.

Step 3: Change File Ownership

chown user:group filename

➡️ Changes the file’s owner and group.

Conclusion

By mastering chmod, chown, and permission basics, you can effectively secure your Linux files.