rgbujoy18

This is a unix command. Can't tell you a lot because I don't work with unix myself, but I can tell you that the chmod 777 command makes a file on unix server available to read, write, etc.

Check out http://www.zzee.com/solutions/unix-permissions.shtml
which explains unix permissions,
and
http://www.zzee.com/solutions/chmod-help.shtml
which is the chmod help file.

Good Success!

James