Related:

• DD Destroy Disk
• dd /dee-dee/ vt. [Unix: from IBM JCL] Equivalent to cat or BLT.
  Originally the name of a Unix copy command with special options suitable for block-oriented device...
• dd: /dee-dee/ [UNIX: from IBM {JCL}] vt. Equivalent to {cat} or {BLT}.
  Originally the name of a UNIX copy command with special options suitable for block-oriented device...
• //GO.SYSIN DD *, DOODAH, DOODAH
• Modems are too slow, and life is too short. [-dd-]
• Drop that pickle!