| Symbolic Notation | Numeric Notation |
|---|---|
| ---------- 0000 | no permissions |
| ---x--x--x 0111 | execute |
| --w--w--w- 0222 | write |
| --wx-wx-wx 0333 | write & execute |
| -r--r--r-- 0444 | read |
| -r-xr-xr-x 0555 | read & execute |
| -rw-rw-rw- 0666 | read & write |
| -rwxrwxrwx 0777 | read, write, & execute |
Recursively chmod only directories
find . -type d -exec chmod 755 {} \;
Recursively set the execute bit on every directory. The +X flag sets the execute bit on directories only
chmod -R a+X *
Recursively chmod only files
find . -type f -exec chmod 644 {} \;
Recursively chmod only PHP files (with extension .php)
find . -type f -name '*.php' -exec chmod 644 {} \;