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32 .\" @(#)uuencode.1 8.1 (Berkeley) 6/6/93
41 .Nd encode/decode a binary file
45 .Op Fl o Ar output_file
59 are used to transmit binary files over transmission mediums
60 that do not support other than simple
67 (or by default the standard input) and writes an encoded version
68 to the standard output, or
70 if one has been specified.
71 The encoding uses only printing
73 characters and includes the
74 mode of the file and the operand
82 files (or by default, the standard input) into the original form.
83 The resulting file is named either
85 or (depending on options passed to
88 and will have the mode of the original file except that setuid
89 and execute bits are not retained.
91 ignores any leading and trailing lines.
93 The following options are available for
97 Use the Base64 method of encoding, rather than the traditional
100 .It Fl o Ar output_file
103 instead of standard output.
106 The following options are available for
108 .Bl -tag -width ident
110 Decode more than one uuencode'd file from
114 Do not overwrite files.
115 .It Fl o Ar output_file
118 instead of any pathname contained in the input data.
122 and write output to standard output.
124 Do not strip output pathname to base filename.
127 deletes any prefix ending with the last slash '/' for security
131 The following example packages up a source tree, compresses it,
132 uuencodes it and mails it to a user on another system.
135 is run on the target system, the file ``src_tree.tar.Z'' will be
136 created which may then be uncompressed and extracted into the original
139 .Bd -literal -offset indent -compact
140 tar cf \- src_tree \&| compress \&|
141 uuencode src_tree.tar.Z \&| mail sys1!sys2!user
144 The following example unpack all uuencode'd
145 files from your mailbox into your current working directory.
147 .Bd -literal -offset indent -compact
151 The following example extract a compress'ed tar
152 archive from your mailbox
154 .Bd -literal -offset indent -compact
155 uudecode -o /dev/stdout < $MAIL | zcat | tar xfv -
164 The encoded form of the file is expanded by 35% (3 bytes become 4 plus
165 control information).
171 utilities appeared in