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Chmod 621

Owner can read, write. Group can write. Others can execute.

Numeric Notation

621

Symbolic Notation

rw--w---x

Command

chmod 621 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 621 filename.txt

Changes permissions of a single file

chmod 621 *.txt

Changes permissions of all .txt files

After applying chmod 621, files will display as:

rw--w---x filename.txt

For Directories

chmod 621 dirname

Changes permissions of a directory

chmod -R 621 dirname

Recursively changes all files and subdirectories

After applying chmod 621, directories will display as:

drw--w---x dirname

Common Use Cases for Chmod 621

General Purpose

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

General Purpose

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

General Purpose

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

Related Chmod Codes

Explore similar permission configurations

Try the Interactive Calculator

Experiment with different permission combinations

Understanding Chmod 621

The chmod 621 command sets specific file permissions in Linux and Unix systems. This permission configuration owner can read, write. group can write. others can execute.

In the numeric notation 621, each digit represents the permission level for different user categories. The symbolic representation rw--w---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 621 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.