Implementation
Perl

Be concise.

Be useful.

All contributions dictatorially edited by webmasters to match personal tastes.

Please do not paste any copyright violating resource.

Please try to avoid dependencies to third-party libraries and frameworks.

Other implementations
System.exit(0);
std::process::exit(0);
halt(0);
import core.stdc.stdlib;
exit(0);
erlang:halt(0).
import sys
sys.exit(1)
import "os"
os.Exit(0)
exit
import System.Exit
exitSuccess
exit();
os.exit()