chmod?

[uReside.com]

What exactly does this do? what's the 777? is it "chmod 777"? can someone explain it breifly? TIA

[WetWired]

What exactly does this do? what's the 777? is it "chmod 777"? can someone explain it breifly? TIA
Chmod sets the permissions on a file. Each file has execute, write, and read permissions for owner, group and all users. Each octal digit represents one set of permissions for one group of people. IIRC, 700 is owner only has full access, 711 owner has full access, everyone can read, 777 is global full access. AFAIK, you need execute permission to view a directory.

[uReside.com]

so i'm guessing if my sites up and i haven't had any viewing issues... i dont really need to worry about this?

[WetWired]

If nothing appears to be broken, then no, you don't need to worry about it.