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?
It 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?
It 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.