code: plan9front

ref: a14f9efa6848f167f54dea3e3823b31dae1461c9
dir: /rc/bin/dontkill/

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#!/bin/rc
# dontkill regexp - mark invoker's processes with names matching regexp
#	as not killable when the kernel runs out of memory
if (! ~ $#* 1) {
	echo $0 regexp >[1=2]
	exit usage
}
# see /sys/src/9/port/proc.c:/^killbig
psu | awk '$NF ~ /'$1'/ {
print "@{echo noswap >/proc/"$2"/ctl}"
}' | rc >/dev/null >[2=1]
exit ''