Calculate Unix file permissions in numeric and symbolic notation.
Runs entirely in your browser.
Chmod Calculation Tool
755
rwxr-xr-x
Numeric:
Owner
Read (4) Write (2) Execute (1)
Group
Read (4) Write (2) Execute (1)
Others
Read (4) Write (2) Execute (1)
Command
Common:
Permission Reference
| Number | Permission | Symbol |
|---|---|---|
| 0 | None | --- |
| 1 | Execute | --x |
| 2 | Write | -w- |
| 3 | Write + Execute | -wx |
| 4 | Read | r-- |
| 5 | Read + Execute | r-x |
| 6 | Read + Write | rw- |
| 7 | All | rwx |
About Chmod
Chmod (change mode) is a command-line utility used to change the access permissions of files and directories in Unix-like operating systems, such as Linux and macOS.
It allows users to control who can read, write, or execute a file or directory.