1 .\" Copyright (c) 1980, 1990, 1993
2 .\" The Regents of the University of California. All rights reserved.
4 .\" Redistribution and use in source and binary forms, with or without
5 .\" modification, are permitted provided that the following conditions
7 .\" 1. Redistributions of source code must retain the above copyright
8 .\" notice, this list of conditions and the following disclaimer.
9 .\" 2. Redistributions in binary form must reproduce the above copyright
10 .\" notice, this list of conditions and the following disclaimer in the
11 .\" documentation and/or other materials provided with the distribution.
12 .\" 3. All advertising materials mentioning features or use of this software
13 .\" must display the following acknowledgement:
14 .\" This product includes software developed by the University of
15 .\" California, Berkeley and its contributors.
16 .\" 4. Neither the name of the University nor the names of its contributors
17 .\" may be used to endorse or promote products derived from this software
18 .\" without specific prior written permission.
20 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 .\" @(#)uuencode.1 8.1 (Berkeley) 6/6/93
43 .Nd encode/decode a binary file
47 .Op Fl o Ar output_file
57 .Op Fl o Ar output_file
72 utilities are used to transmit binary files over transmission mediums
73 that do not support other than simple
78 utility is synonymous with
85 utility is synonymous with
95 (or by default the standard input) and writes an encoded version
96 to the standard output, or
98 if one has been specified.
99 The encoding uses only printing
101 characters and includes the
102 mode of the file and the operand
111 files (or by default, the standard input) into the original form.
112 The resulting file is named either
114 or (depending on options passed to
117 and will have the mode of the original file except that setuid
118 and execute bits are not retained.
121 utility ignores any leading and trailing lines.
123 The following options are available for
125 .Bl -tag -width ident
127 Use the Base64 method of encoding, rather than the traditional
130 .It Fl o Ar output_file
133 instead of standard output.
136 The following options are available for
138 .Bl -tag -width ident
140 Decode more than one uuencoded file from
144 Do not overwrite files.
148 flag, decode Base64 input instead of traditional
154 .It Fl o Ar output_file
157 instead of any pathname contained in the input data.
161 and write output to standard output.
163 Decode raw (or broken) input, which is missing the initial and
164 possibly the final framing lines.
165 The input is assumed to be in the traditional
169 flag is used, or if the utility is invoked as
171 then the input is assumed to be in Base64 format.
173 Do not strip output pathname to base filename.
176 deletes any prefix ending with the last slash '/' for security
180 The following example packages up a source tree, compresses it,
181 uuencodes it and mails it to a user on another system.
184 is run on the target system, the file ``src_tree.tar.Z'' will be
185 created which may then be uncompressed and extracted into the original
188 .Bd -literal -offset indent -compact
189 tar cf \- src_tree \&| compress \&|
190 uuencode src_tree.tar.Z \&| mail sys1!sys2!user
193 The following example unpacks all uuencoded
194 files from your mailbox into your current working directory.
196 .Bd -literal -offset indent -compact
200 The following example extracts a compressed tar
201 archive from your mailbox
203 .Bd -literal -offset indent -compact
204 uudecode -o /dev/stdout < $MAIL | zcat | tar xfv -
210 .Xr uucp 1 Pq Pa ports/net/freebsd-uucp ,
217 utilities appeared in
220 Files encoded using the traditional algorithm are expanded by 35% (3
221 bytes become 4 plus control information).