Chmod Calculator

Convert between symbolic and numeric Unix/Linux file permissions

Octal Input

chmod filename

Symbolic Notation

-rwxr-xr-x

Octal Notation

755

chmod Command

chmod 755 filename

755 Standard dir / executable

644 Standard file

777 Full access (risky)

700 Owner only

600 Private file (SSH keys)

750 Owner+group exec

664 Shared group file

400 Read-only owner