#HELP# /exec [-o] <cmd> - execute <cmd> [ output to channel with -o ]
CMD_exec()
{
	if [ "$1" = "-o" ]; then
		shift
		cmd=$@
		if [ -z "$JOINFILE" ]; then
			echo "You must first join a channel"
			return
		fi
		eval "$cmd" | { while read REPLY; do CMD_say $REPLY; done }
	else
		cmd=$@
		eval "$cmd"
	fi
}