chmod 775
chmod 775 is rwxrwxr-x.
What 775 grants
| Who | Digit | Permissions | Adds up as |
|---|---|---|---|
| Owner | 7 | read, write, execute | 4 + 2 + 1 = 7 |
| Group | 7 | read, write, execute | 4 + 2 + 1 = 7 |
| Others | 5 | read, execute | 4 + 1 = 5 |
When 775 is the right answer
Owner and group full access, others read and traverse. The usual setting for a directory that a group maintains and a web server or other users need to read.
The command
chmod 775 filename
chmod -R 775 directory/Because the owner has the execute bit, this works on a directory as well as a file — on a directory, execute is what grants the right to enter it and reach the entries inside.
How it is written elsewhere
| Octal | 775 |
| Symbolic | rwxrwxr-x |
As a file in ls -l | -rwxrwxr-x |
As a directory in ls -l | drwxrwxr-x |
| Binary | 111 111 101 |
| World-writable | No |
Frequently asked questions
What does chmod 775 mean?
chmod 775 sets owner to read, write, execute, group to read, write, execute, others to read, execute. In symbolic notation that is rwxrwxr-x.
How do I apply 775?
Run chmod 775 filename. Add -R to apply it to a directory and everything inside, though be careful: a recursive numeric chmod marks every file the same way, which is rarely correct for a mixed tree of files and directories.
Is 775 safe?
chmod 775 grants no write access outside the owner and the group, so it is a reasonable setting as long as the owner is the account you intend.
What is 775 in symbolic notation?
rwxrwxr-x. Written as ls -l shows it, with a leading file-type character, an ordinary file would appear as -rwxrwxr-x and a directory as drwxrwxr-x.
Other permission values
- chmod 776 — rwxrwxrw-
- chmod 777 — rwxrwxrwx
- chmod 1777 — rwxrwxrwt
- chmod 2755 — rwxr-sr-x
- chmod 2775 — rwxrwsr-x
- chmod 4755 — rwsr-xr-x
- chmod 4711 — rws--x--x
- chmod 6755 — rwsr-sr-x
- chmod 000 — ---------
- chmod 400 — r--------
- chmod 440 — r--r-----
- chmod 444 — r--r--r--
- chmod 600 — rw-------
- chmod 640 — rw-r-----