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Chmod 600

Owner can read, write. Group has no permissions. Others have no permissions.

Numeric Notation

600

Symbolic Notation

rw-------

Command

chmod 600 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 600 filename.txt

Changes permissions of a single file

chmod 600 *.txt

Changes permissions of all .txt files

After applying chmod 600, files will display as:

rw------- filename.txt

For Directories

chmod 600 dirname

Changes permissions of a directory

chmod -R 600 dirname

Recursively changes all files and subdirectories

After applying chmod 600, directories will display as:

drw------- dirname

Common Use Cases for Chmod 600

SSH Keys

Private SSH keys must have these permissions for security.

Password Files

Files containing passwords or credentials.

Private Configuration

Personal configuration files with sensitive settings.

Related Chmod Codes

Explore similar permission configurations

Try the Interactive Calculator

Experiment with different permission combinations

Understanding Chmod 600

The chmod 600 command sets specific file permissions in Linux and Unix systems. This permission configuration owner can read, write. group has no permissions. others have no permissions.

In the numeric notation 600, each digit represents the permission level for different user categories. The symbolic representation rw------- 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 600 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.