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1.1 ! root 1: .TH UUENCODE 5 6/1/80 ! 2: .UC 4 ! 3: .SH NAME ! 4: uuencode \- format of an encoded uuencode file ! 5: .SH DESCRIPTION ! 6: Files output by ! 7: .I uuencode(1) ! 8: consist of a header line, ! 9: followed by a number of body lines, ! 10: and a trailer line. ! 11: .I Uudecode(1) ! 12: will ignore any lines preceding the header or ! 13: following the trailer. ! 14: Lines preceding a header must not, of course, ! 15: look like a header. ! 16: .PP ! 17: The header line is distinguished by having the first ! 18: 6 characters \*(lqbegin\ \*(rq. ! 19: The word ! 20: .I begin ! 21: is followed by a mode (in octal), ! 22: and a string which names the remote file. ! 23: A space separates the three items in the header line. ! 24: .PP ! 25: The body consists of a number of lines, each at most 62 characters ! 26: long (including the trailing newline). ! 27: These consist of a character count, ! 28: followed by encoded characters, ! 29: followed by a newline. ! 30: The character count is a single printing character, ! 31: and represents an integer, the number of bytes ! 32: the rest of the line represents. ! 33: Such integers are always in the range from 0 to 63 and can ! 34: be determined by subtracting the character space (octal 40) ! 35: from the character. ! 36: .PP ! 37: Groups of 3 bytes are stored in 4 characters, 6 bits per character. ! 38: All are offset by a space to make the characters printing. ! 39: The last line may be shorter than the normal 45 bytes. ! 40: If the size is not a multiple of 3, this fact can be determined ! 41: by the value of the count on the last line. ! 42: Extra garbage will be included to make the character count a multiple ! 43: of 4. ! 44: The body is terminated by a line with a count of zero. ! 45: This line consists of one ASCII space. ! 46: .PP ! 47: The trailer line consists of \*(lqend\*(rq on a line by itself. ! 48: .SH SEE\ ALSO ! 49: uuencode(1), uusend(1), uucp(1), mail(1)
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