1*569c3747SDavid du Colombier#!/bin/rc 2*569c3747SDavid du Colombier# E file - B file, wait until it changes, exit 3*569c3747SDavid du Colombierrfork e 4*569c3747SDavid du Colombierif (! ~ $#* 1) { 5*569c3747SDavid du Colombier echo usage: $0 file >[1=2] 6*569c3747SDavid du Colombier exit usage 7*569c3747SDavid du Colombier} 8*569c3747SDavid du Colombierif (! test -e $1) { 9*569c3747SDavid du Colombier echo $0: $1: no such file >[1=2] 10*569c3747SDavid du Colombier exit no-file 11*569c3747SDavid du Colombier} 12*569c3747SDavid du Colombierotm = `{mtime $1 | awk '{print $1}'} 13*569c3747SDavid du ColombierB $1 14*569c3747SDavid du Colombierwhile (~ $otm `{mtime $1 | awk '{print $1}'}) 15*569c3747SDavid du Colombier sleep 1 16*569c3747SDavid du Colombierexit '' 17