chmod 2755 — rwxr-sr-x
What chmod 2755 allows, when to use it, and the calculator pre-filled with it — toggle any box to compare.
rwxr-sr-xrwxr-xr-xchmod 2755 filenamechmod -R 2755 /path/to/dirWhat this means
Owner can read, write, execute. Group can read, execute. Others can read, execute.
What chmod 2755 allows
| Who | Read | Write | Execute |
|---|---|---|---|
| Owner | ✓ | ✓ | ✓ |
| Group | ✓ | — | ✓ |
| Others | ✓ | — | ✓ |
- • setgid (2): on a directory, new files inherit its group; on a program, it runs with the file's group.
setgid on a directory: new files inherit the directory's group instead of the creator's. Used for shared team folders.
Commands
chmod 2755 fileset it on one file or directorychmod u=rwx,g=rxs,o=rx filethe same thing in symbolic formchmod -R 2755 dir/recursively — careful: it applies to files and directories alikels -l filecheck the result: -rwxr-sr-x (a directory shows drwxr-sr-x)On a directory, read lets you list it, write lets you create and delete entries, and execute lets you enter it and open what's inside. That's why directories usually get 755 or 750 while files get 644 or 640.
Frequently asked
What does chmod 2755 mean?
Owner: read, write, execute. Group: read, execute. Others: read, execute. setgid (2): on a directory, new files inherit its group; on a program, it runs with the file's group. In ls -l it shows as rwxr-sr-x.
What is the symbolic form of chmod 2755?
chmod u=rwx,g=rxs,o=rx file — it sets exactly the same permissions as chmod 2755.
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