Developer Utilities

Unix Permission Calculator

Convert between chmod octal modes, rwx symbols, and special permission bits.

Unix file permissions
chmod · rwx · setuid · setgid · sticky
ScopeReadWriteExecuteDigit
Owner7
Group5
Others5
Permission result
755Octal
-rwxr-xr-xSymbolic
Command
chmod 755 <path>

Unix Permission Calculation

Convert between chmod octal modes and rwx symbolic notation, including setuid, setgid, and sticky special bits.

Reading Modes

  • Read, write, and execute have values 4, 2, and 1
  • The three groups represent owner, group, and others
  • The generated command uses a placeholder path that must be reviewed before execution