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MIMENCODE(1)									     MIMENCODE(1)

       mimencode - Translate to and from mail-oriented encoding formats

       (Same program also installed as "mmencode".)

       mimencode[-u] [-b] [-q] [-p] [file name] [-o outputfile]

       The  mimencode  program simply converts a byte stream into (or out of) one of the standard
       mail encoding formats defined by MIME, the proposed standard for internet multimedia  mail
       formats.   Such	an  encoding  is necessary because binary data cannot be sent through the
       mail.  The encodings understood by mimencode are  preferable  to  the  use  of  the  uuen-
       code/uudecode  programs,  for  use in mail, in several respects that were important to the
       authors of MIME.

       By default, mimencode reads standard input, and sends a "base64" encoded  version  of  the
       input to standard output.

       The (really not necessary) "-b" option tells mimencode to use the "base64" encoding.

       The "-q" option tells mimencode to use the "quoted-printable" encoding instead of base64.

       The "-u" option tells mimencode to decode the standard input rather than encode it.

       The "-p" option tells mimencode to translate decoded CRLF sequences into the local newline
       convention during decoding and to do the reverse during encoding.   This  option  is  only
       meaningful when	-b (base64 encoding) is in effect.

       If  a  file name argument is given, input is read from that file rather than from standard

       The "-o" option, which must be followed by a file name, sends output  to  the  named  file
       rather than to standard output.

       Mimencode  is intended to be a replacement for uuencode for mail and news use.  The reason
       is simple:  uuencode doesn't work very well in a number of  circumstances  and  ways.   In
       particular,  uuencode  uses  characters that don't translate well across all mail gateways
       (particularly ASCII <-> EBCDIC gateways).  Also, uuencode is not  standard  --  there  are
       several variants floating around, encoding and decoding things in different and incompati-
       ble ways, with no "standard" on which to base an implementation.  Finally,  uuencode  does
       not  generally  work  well  in a pipe, although some variants have been modified to do so.
       Mimencode implements the encodings which were defined for MIME as  uuencode  replacements,
       and should be considerably more robust for email use.

       metamail(1), mailto(1)

       This  program  was  originally distributed as "mmencode".  That name turns out to conflict
       with a program of the same name that is part of the Slate software from BBN,  but  totally
       changing  the  name  to mimencode would create other problems (notably with portability to
       systems where the left half of file names is limited to 8 characters).  Currently,  it  is
       being distributed with links under BOTH names.  The programs in the distribution that call
       the program all call it as "mimencode", so the "mmencode" version may be deleted at  sites
       where  it  causes  a  problem.	(The  source files are still named "mmencode" rather than

       Copyright (c) 1991 Bell Communications Research, Inc. (Bellcore)

       Permission to use, copy, modify, and distribute this material for any purpose and  without
       fee is hereby granted, provided that the above copyright notice and this permission notice
       appear in all copies, and that the name of Bellcore not be used in advertising or  public-
       ity  pertaining	to  this  material  without  the specific, prior written permission of an
       authorized representative of Bellcore.  BELLCORE MAKES NO REPRESENTATIONS ABOUT THE  ACCU-

       Nathaniel S. Borenstein

Bellcore Prototype			    Release 1				     MIMENCODE(1)
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