UNIX Permissions Calculator
Easily convert between octal, symbolic, and checkbox representations of file permissions.
Permissions
owner
group
other
Special
Octal Notation
e.g., 0755
Symbolic Notation
e.g., -rwxr-xr-x
Understanding UNIX Permissions
In UNIX-like operating systems, file permissions control who can read, write to, or execute a file. Permissions are assigned to three categories of users: the **Owner** (the user who created the file), the **Group** (a group of users), and **Others** (everyone else). This tool helps you visualize and calculate the permissions in both octal (numeric) and symbolic formats, which are commonly used in commands like `chmod`.