xref: /plan9/sys/lib/dist/pc/inst/isext2 (revision 9a747e4fd48b9f4522c70c07e8f882a15030f964)
1#!/bin/rc
2
3if(! ~ $#* 1) {
4	echo 'usage: isext2 /dev/sdC0/part' >[1=2]
5	exit usage
6}
7
8cmp -s <{dd -if $1 -bs 1 -count 2 -skip 1080 >[2]/dev/null | xd -b |sed 1q} \
9	<{echo '0000000  53 ef'}
10
11exit $status
12