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uuencode (5)
  • uuencode (1) ( Solaris man: Команды и прикладные программы пользовательского уровня )
  • uuencode (1) ( FreeBSD man: Команды и прикладные программы пользовательского уровня )
  • uuencode (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
  • uuencode (1) ( POSIX man: Команды и прикладные программы пользовательского уровня )
  • >> uuencode (5) ( FreeBSD man: Форматы файлов )
  • uuencode (5) ( Linux man: Форматы файлов )

  • BSD mandoc
     

    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 '' (note the trailing space). The word begin is followed by a mode (in octal), and a string which names the remote file. A space separates 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 1 to 45 or 64 and can be determined by subtracting the character space (octal 40) from the character. Character 64 represents a count of zero.

    Groups of 3 bytes are stored in 4 characters, 6 bits per character. All characters are always in range from 1 to 64 and are offset by a space (octal 40) to make the characters printing. Character 64 represents a count of zero. 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 null characters 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 backquote (octal 140) character.

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

    SEE ALSO

    mail(1), uucp(1), uudecode(1), uuencode(1)  

    HISTORY

    The file format appeared in BSD 4.0


     

    Index

    NAME
    DESCRIPTION
    SEE ALSO
    HISTORY


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