#! /bin/bash
# This script tests: pbmtoxbm xbmtopbm
# Also requires: 

  alias pbmtoxbm="${PBM_TESTPREFIX}pbmtoxbm"
  alias xbmtopbm="${PBM_TESTPREFIX}xbmtopbm"
  shopt -s expand_aliases

pbmtoxbm testgrid.pbm | xbmtopbm | cksum
pbmtoxbm -x10 testgrid.pbm | xbmtopbm | cksum