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Chmod 221

Owner can write. Group can write. Others can execute.

Numeric Notation

221

Symbolic Notation

-w--w---x

Command

chmod 221 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 221 filename.txt

Changes permissions of a single file

chmod 221 *.txt

Changes permissions of all .txt files

After applying chmod 221, files will display as:

-w--w---x filename.txt

For Directories

chmod 221 dirname

Changes permissions of a directory

chmod -R 221 dirname

Recursively changes all files and subdirectories

After applying chmod 221, directories will display as:

d-w--w---x dirname

Common Use Cases for Chmod 221

General Purpose

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

General Purpose

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

General Purpose

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

Related Chmod Codes

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Try the Interactive Calculator

Experiment with different permission combinations

Understanding Chmod 221

The chmod 221 command sets specific file permissions in Linux and Unix systems. This permission configuration owner can write. group can write. others can execute.

In the numeric notation 221, each digit represents the permission level for different user categories. The symbolic representation -w--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 221 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.