UUENCODE(5) UNIX Programmer's Manual UUENCODE(5)
uuencode - format of an encoded uuencode file
D
\bDE
\bES
\bSC
\bCR
\bRI
\bIP
\bPT
\bTI
\bIO
\bON
\bN
Files output by _
\bu_
\bu_
\be_
\bn_
\bc_
\bo_
\bd_
\be(_
\b1_
\bC) consist of a header line, fol-
lowed by a number of body lines, and a trailer line.
_
\bU_
\bu_
\bd_
\be_
\bc_
\bo_
\bd_
\be(_
\b1_
\bC) 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 char-
acters "begin ". The word _
\bb_
\be_
\bg_
\bi_
\bn 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 charac-
ters, followed by a newline. The character count is a sin-
gle 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)
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.
S
\bSE
\bEE
\bE A
\bAL
\bLS
\bSO
\bO
uuencode(1C), uudecode(1C), uusend(1C), uucp(1C), mail(1)
Printed 7/9/88 May 15, 1985 1
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