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Chmod 405

Owner can read. Group has no permissions. Others can read, execute.

Numeric Notation

405

Symbolic Notation

r-----r-x

Command

chmod 405 file

Permission Breakdown

Detailed view of permissions for each user category

Owner

✓ Read✗ Write✗ Execute

Group

✗ Read✗ Write✗ Execute

Others

✓ Read✗ Write✓ Execute

For Files

chmod 405 filename.txt

Changes permissions of a single file

chmod 405 *.txt

Changes permissions of all .txt files

After applying chmod 405, files will display as:

r-----r-x filename.txt

For Directories

chmod 405 dirname

Changes permissions of a directory

chmod -R 405 dirname

Recursively changes all files and subdirectories

After applying chmod 405, directories will display as:

dr-----r-x dirname

Common Use Cases for Chmod 405

Shared Reading

Files that need to be readable by multiple users or groups.

General Purpose

This permission set is useful when you need owner read access.

General Purpose

This permission set is useful when you need owner read access.

Related Chmod Codes

Explore similar permission configurations

Try the Interactive Calculator

Experiment with different permission combinations

Understanding Chmod 405

The chmod 405 command sets specific file permissions in Linux and Unix systems. This permission configuration owner can read. group has no permissions. others can read, execute.

In the numeric notation 405, each digit represents the permission level for different user categories. The symbolic representation r-----r-x provides a visual way to understand these permissions, where 'r' means read, 'w' means write, 'x' means execute, and '-' means no permission.

When you execute chmod 405 filename, you're modifying the file's access control list to match this specific permission pattern. This is essential for maintaining proper security and access control in multi-user environments.