In my Uni notes I have this as a command line argument; file1 | a.out > file2
Obviously file1 should pipe to a.out and a.out output should be sent to file2. When running this command file1 is obviously not a valid command. Should this work on linux or unix. Antony -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug