There is no real VMS equivalent for the dd command. The closest thing is to mount the disk as a foreign device. Then you might try backup to copy data towards it. The copy command won't work I think, though it does so on a foreign mounted tape. Hans ------Origineel bericht------ Van: Sampsa Laine Afzender: owner-hecnet at Update.UU.SE Aan: hecnet at Update.UU.SE Beantwoorden: hecnet at Update.UU.SE Onderwerp: [HECnet] N00b question - dd equiv on VMS Verzonden: 25 oktober 2011 20:44 I want to write the contents of a file directly onto a device, like you would on say Unix with dd: dd if=infile of=/dev/outdevice How do I do this on VMS?