code: plan9front

ref: 65bd53b9b89b0a84d0f16db4adc3f53fa6ab3a3a
dir: /rc/bin/hold/

View raw version 
#!/bin/rc
{
	echo holdon >[1=3]
	cat $1 > /dev/cons
	cat /dev/cons > $1
} >[3]/dev/consctl