EBCDIC to ASCII conversion under ULTRIX

[Guy Harris]

> Before implementing this program, you might check to see if the options
>available on the 'dd' command are suitable for the intented purposes.

Unfortunately, ssome of the other suggestions didn't bother suggesting
doing this check first.  From the SunOS 4.0.3 DD(1) (but they all work
this way, and the manuals should all say this):

     cbs is used only if ascii, unblock, ebcdic,  ibm,  or  block
     conversion  is specified.  In the first two cases, cbs char-
     acters are placed into the conversion buffer, any  specified
     character  mapping is done, trailing blanks trimmed and NEW-
     LINE added before sending the line to the  output.   In  the
     latter  three cases, characters are read into the conversion
     buffer, and blanks added to make up an output record of size
     cbs.

so that the "ascii" and "ebcdic" and "ibm" options are for converting
between ASCII lines (NL at the end, UNIX lines) and EBCDIC *card
images*.  This may or may not be what the original poster wanted....