Symbolic Notation
-rwxrw-r--(as shown by ls -l)-rwxrw-r--
typeownergroupother
Permission Matrix
| Read(4) | Write(2) | Execute(1) | Octal | |
|---|---|---|---|---|
| Owner | r | w | x | 7 |
| Group | r | w | - | 6 |
| Other | r | - | - | 4 |
What Does chmod 764 Mean?
Owner can read, write, execute. Group can read, write. Others can read.
$ chmod 764 filenameCommon Use Cases
Owner has full access; group can read and write; others can only read. Used for directories where a team edits files but the public only reads.
Security Notes
Unusual but useful for team workflows. Verify group write access is intentional — group members can modify files.
Interactive Tool
Need to calculate a custom permission? Use the interactive permissions calculator to toggle individual bits and get instant results.
Unix Permissions Calculator