version 1, including all changes.
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perry |
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UUENCODE |
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!!!UUENCODE |
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NAME |
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DESCRIPTION |
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SEE ALSO |
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HISTORY |
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---- |
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!!NAME |
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uuencode - format of an encoded uuencode file |
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!!DESCRIPTION |
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Files output by uuencode(1) consist of a header line, |
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followed by a number of body lines, and a trailer line. The |
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uudecode(1) command will ignore any lines preceding the |
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header or following the trailer. Lines preceding a header |
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must not, of course, look like a header. |
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The header line is distinguished by having the first 6 |
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characters ''begin'' The word ''begin'' is followed by |
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a mode (in octal), and a string which names the remote file. |
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A space separates the three items in the header |
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line. |
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The body consists of a number of lines, each at most 62 |
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characters long (including the trailing newline). These |
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consist of a character count, followed by encoded |
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characters, followed by a newline. The character count is a |
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single printing character, and represents an integer, the |
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number of bytes the rest of the line represents. Such |
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integers are always in the range from 0 to 63 and can be |
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determined by subtracting the character space (octal 40) |
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from the character. |
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Groups of 3 bytes are stored in 4 characters, 6 bits per |
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character. All are offset by a space to make the characters |
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printing. The last line may be shorter than the normal 45 |
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bytes. If the size is not a multiple of 3, this fact can be |
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determined by the value of the count on the last line. Extra |
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garbage will be included to make the character count a |
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multiple of 4. The body is terminated by a line with a count |
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of zero. This line consists of one ASCII space. |
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48 |
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The trailer line consists of ''end'' on a line by |
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itself. |
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!!SEE ALSO |
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uuencode(1), uudecode(1), uusend(1), uucp(1), |
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mail(1) |
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!!HISTORY |
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The ''uuencode'' file format appeared in BSD 4.0 |
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. |
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---- |