uuencode(5) - phpMan

UUENCODE(5)                                                                           UUENCODE(5)



NAME
       uuencode - format of an encoded uuencode file

DESCRIPTION
       Files  output by uuencode(1) consist of a header line, followed by a number of body lines,
       and a trailer line.  The uudecode(1) command will ignore any lines preceding the header or
       following  the trailer.  Lines preceding a header must not, of course, look like a header.

       The header line is distinguished by having the first 6 characters begin  The word begin is
       followed  by  a  mode (in octal), and a string which names the remote file.  A space sepa-
       rates the three items in the header line.

       The body consists of a number of lines, each at most 62  characters  long  (including  the
       trailing  newline).   These  consist of a character count, followed by encoded characters,
       followed by a newline.  The character count is a single printing character, and represents
       an integer, the number of bytes the rest of the line represents.  Such integers are always
       in the range from 0 to 63 and can be determined by subtracting the character space  (octal
       40) from the character.

       Groups  of  3 bytes are stored in 4 characters, 6 bits per character.  All are offset by a
       space to make the characters printing.  The last line may be shorter than  the  normal  45
       bytes.   If  the  size is not a multiple of 3, this fact can be determined by the value of
       the count on the last line.  Extra garbage will be included to make the character count  a
       multiple of 4.  The body is terminated by a line with a count of zero.  This line consists
       of one ASCII space.

       The trailer line consists of end on a line by itself.

SEE ALSO
       uuencode(1), uudecode(1), uusend(1), uucp(1), mail(1)

HISTORY
       The uuencode file format appeared in BSD 4.0 .



                                                                                      UUENCODE(5)

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