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uuencode.man
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1989-09-20
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UUENCODE(1) USER COMMANDS UUENCODE(1)
NAME
uuencode,uudecode - encode/decode a binary file for
transmission via (plain text) mail
SYNOPSIS
uuencode [source] remotedest | mail sys1!sys2!..!decode
uuencode >outfile.uue source remotedest
uuencode >outfile.uue <source remotedest
uudecode [file]
DESCRIPTION
_U_u_e_n_c_o_d_e and _u_u_d_e_c_o_d_e are used to send a binary file via
uucp (or other) mail. This combination can be used over
indirect mail links even when _u_u_s_e_n_d(1C) or other direct
binary transmission methods are not available.
_U_u_e_n_c_o_d_e takes the named source file (default standard
input) and produces an encoded version on the standard out-
put. The encoding uses only printing ASCII characters, and
includes the mode of the file and the _r_e_m_o_t_e_d_e_s_t for recrea-
tion on the remote system.
_U_u_d_e_c_o_d_e reads an encoded file, strips off any leading lines
added by mailers, and recreates the original file with the
specified mode and name. If there are other uuencoded files
in the same input, they will be decoded as well.
The intent is that all mail to the user ``decode'' should be
filtered through the uudecode program. This way the file is
created automatically without human intervention. This is
possible on the uucp network by either using _s_e_n_d_m_a_i_l or by
making _r_m_a_i_l be a link to _M_a_i_l instead of _m_a_i_l. In each
case, an alias must be created in a master file to get the
automatic invocation of uudecode.
If these facilities are not available, the file can be
uudecoded manually.
The encode file has an ordinary text form and can be edited
by any text editor to change the mode or remote name.
This version of uuencode automatically adds checksums to
each line, and an overall file size to the end. Old ver-
sions of uudecode will ignore this extra information, new
versions will check it and complain if it is in error.
SEE ALSO
uuencode(5), uusend(1C), uucp(1C), uux(1C), mail(1)
AUTHOR
Mark Horton
Checksums and Amiga port by Alan J. Rosenthal
Sun Release 3.2 Last change: 17 July 1987 1
UUENCODE(1) USER COMMANDS UUENCODE(1)
More fixes by Fred Fish
File size check and various refinements by Bryce Nesbitt
BUGS
The file is expanded by 35% (3 bytes become 4, plus control
information) causing it to take longer to transmit.
The user on the remote system who is invoking _u_u_d_e_c_o_d_e
(often _u_u_c_p) must have write permission on the specified
file
Sun Release 3.2 Last change: 17 July 1987 2