#! /bin/bash
# This script tests: pbmtowbmp wbmptopbm
# Also requires: 

  alias pbmtowbmp="${PBM_TESTPREFIX}pbmtowbmp"
  alias wbmptopbm="${PBM_TESTPREFIX}wbmptopbm"
  shopt -s expand_aliases

# Should print 2425386270 41, cksum of testgrid.pbm
pbmtowbmp testgrid.pbm | wbmptopbm | cksum