Chmod Calculator

Visually set Linux/Unix file permissions, get the octal notation, symbolic string, and the exact chmod command to run.

File Permissions
PermissionRead (r)Write (w)Execute (x)Octal
Owner 7
Group 5
Others 5
Symbolicrwxr-xr-x
Status World Readable
chmod 755 myfile
chmod -R 755 myfile/
Common Presets

How Chmod Permissions Work

Read (4)

Files: Allows viewing the file contents with commands like cat or less.

Directories: Allows listing contents with ls.

Write (2)

Files: Allows modifying, appending to, or deleting the file.

Directories: Allows creating, renaming, or removing files within the directory.

Execute (1)

Files: Allows running the file as a program or shell script.

Directories: Allows entering the directory with cd and accessing its files.