for a in {134..134} ;do \
	for b in {7..7} ;do \
	for c in {44..47} ;do \
	## C'mon, only fork 255 processes at a time pls, anything else is just rude,
	## and will likely give you a RESOURCE BUSY
	sleep 1
		for d in {0..254} ;do \
			(ping $a.$b.$c.$d -c 1 -w 1 >/dev/null &)
			[ $? -eq 0 ] && echo $a.$b.$c.$d >> alive

	done; done; done; done;