First type send in the search box at the top of perlmonks (or run " perldoc -f send "). Normally we get the docs for a function this way. Interestingly the flags are not mentioned but we see that it says:

Takes the same flags as the system call of the same name.

Now I'm going to assume you're not used to programming in a unix-like system environment so the unix man pages can be accessed like " man send " (it actually varies depending on your system). (A "man page" is part of the system manual and each "page" describes a part of the system, often a command or function call.) If I don't have the man page on my system I often just google for it like: man send. The first hit is often what I'm looking for.

I hope that should help a bit. Best regards, Chad