Urm, as usual, a little correction. In last minute i replaced "hallo" by "hello" and did not replace the MD5. Of, course the records are compatible to md5sum : $ echo hello | cd_backup_planer -filter_md5 /tmp/md5test x hello $ tail -1 /tmp/md5test x A40813.225103 6 b1946ac92492d2347c6235b4d2611184 $ echo hello | md5sum b1946ac92492d2347c6235b4d2611184 - Have a nice day Thomas