Why is 777 assned to chmod to permit everything on a file?

chmod 777chmod 777 foldername will give read, write, and execute permissions for everyone. chmod 700 foldername will give read, write, and executeYou almost never need 777 permissions on any type of file, and you absolutely never need 777 on a non-executable file. – skiphoppy Commented Apr 4, 2012 at 10:51