Remove some options from 'hg grep': -Z (we have -0 as in locate) -a (use "-r 0:tip" instead, or always grep all unless -r is given) -e (we have the PATTERN argument) -v (doesn't work, and this is more of a job for 'hg cat|grep') -s (we have -q/--quiet) -f (should be always enabled if -l used, or enable on -v/--verbose)

#!/bin/sh
hg init
echo This is file a1 > a
hg add a
hg commit -m "commit #0" -d "0 0"
ls
echo This is file b1 > b
hg add b
hg commit -m "commit #1" -d "0 0"
hg co 0
# B should disappear
ls