uuencode [-m] [ file ] name

       uudecode [-o outfile] [ file ]...

       Uuencode  and  uudecode are used to transmit binary files over channels
       that support only simple ASCII data.

       Uuencode reads file (or by default the standard input)  and  writes  an
       encoded  version  to  the  standard  output, using only printable ASCII
       characters.  The encoded output begins with a header, for use by  uude-
       code,  which  records  the mode of the input file and suggests name for
       the decoded file that will be created.  (If name  is  /dev/stdout  then
       uudecode  will decode to standard output.)  The encoding has the format
       documented at uuencode(5), unless the option -m is given,  when  base64
       encoding is used instead.

       Note:  uuencode  uses  buffered  input  and assumes that it is not hand
       typed from a tty.  The consequence is that at a tty, you  may  need  to
       hit Ctl-D several times to terminate input.

       Uudecode transforms uuencoded files (or standard input) into the origi-
       nal form.  The resulting file is named  name  (or  outfile  if  the  -o
       option  is  given)  and  will have the mode of the original file except
       that setuid and execute bits are not retained.  If outfile or  name  is
       /dev/stdout  the  result  will be written to standard output.  Uudecode
       ignores any leading and trailing lines.  The  program  determines  from
       the header which of the two supported encoding schemes was used.

       The  following  example packages up a source tree, compresses it, uuen-
       codes it and mails it to a user on another system.   When  uudecode  is
       run  on  the target system, the file ``src_tree.tar.Z'' will be created
       which may then be uncompressed and extracted into the original tree.

              tar cf - src_tree | compress | uuencode  src_tree.tar.Z  |  mail

       compress(1), mail(1), uucp(1), uuencode(5)

       This implementation is compliant with P1003.2b/D11.

       If  more  than one file is given to uudecode and the -o option is given
       or more than one name in the encoded files are the same the  result  is
       probably not what is expected.

       The  encoded form of the file is expanded by 37% for UU encoding and by
       35% for base64 encoding (3 bytes become 4 plus control information).
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