Greetings! The output of 'od -x filename' appears to be reversed character-by-character. Let's say file 'junk' cpontains '121212'. In HP/UX 'od -x junk' yields 3132 3132 3132 In cygwin it yields 3231 3231 3231 Any ideas? cygcheck.out is attached. System is a recent beta (about 2 months old) on Windows 98. Thanks very much. timothy.buckelew@noaa.gov