Codes below for quick reference:
All seven permissions are listed below, with their numeric values on the left. 1. —x 2. -w- 3. -wx 4. r— 5. r-x 6. rw- 7. rwx
Common combinations in use on web servers are as follows:
644 = rw-r—r— Usual permissions for reading an HTML web page or Read-only text files. 664 = rw-rw-r— Used in most plain text hit-counter logs (writable = on) 666 = rw-rw-rw- Used in scripts that require World writable permission. 711 = rwx—x—x Used by Perl scripts to make them executable only upon access. 751 = rwxr-x—x Used by Perl scripts that must be written to and executed (hit counters). 755 = rwxr-xr-x Used by some Perl-scripts and binary database files. 775 = rwxrwxr-x Normal permission for your website’s Root directory 777 = rwxrwxrwx The whole ball of wax. You better have tight security on any file marked with these permissions. 777 is usually only assigned to a CGI Directory, rather than to an individual file.