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Chmod 3664

Owner can read, write. Group can read, write. Others can read. SETGID bit is set. Sticky bit is set.

Numeric Notation

3664

Symbolic Notation

rw-rwSr-T

Command

chmod 3664 file

Permission Breakdown

Detailed view of permissions for each user category

Owner
✓ Read✓ Write✗ Execute
Group
✓ Read✓ Write✗ Execute
Others
✓ Read✗ Write✗ Execute
Special Permissions
✓ SETGID bit is set
✓ Sticky bit is set

For Files

chmod 3664 filename.txt
Changes permissions of a single file
chmod 3664 *.txt
Changes permissions of all .txt files
After applying chmod 3664, files will display as:
rw-rwSr-T filename.txt

For Directories

chmod 3664 dirname
Changes permissions of a directory
chmod -R 3664 dirname
Recursively changes all files and subdirectories
After applying chmod 3664, directories will display as:
drw-rwSr-T dirname

Common Use Cases for Chmod 3664

1
Shared Reading
Files that need to be readable by multiple users or groups.
2
General Purpose
This permission set is useful when you need owner read, write access.
3
General Purpose
This permission set is useful when you need owner read, write access.

Related Chmod Codes

Explore similar permission configurations

3662
rw-rwS-wT
3663
rw-rwS-wt
3665
rw-rwSr-t
3666
rw-rwSrwT
644
rw-r--r--
755
rwxr-xr-x

Try the Interactive Calculator

Experiment with different permission combinations

Understanding Chmod 3664

The chmod 3664 command sets specific file permissions in Linux and Unix systems. This permission configuration owner can read, write. group can read, write. others can read. setgid bit is set. sticky bit is set.

In the numeric notation 3664, each digit represents the permission level for different user categories. The symbolic representation rw-rwSr-T 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 3664 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.