The
and
uudecode
utilities are used to transmit binary files over transmission mediums
that do not support other than simple
ASCII
data.
The
b64encode
utility is synonymous with
with the
-m
flag specified.
The
b64decode
utility is synonymous with
uudecode
with the
-m
flag specified.
The
utility reads
file
(or by default the standard input) and writes an encoded version
to the standard output, or
output_file
if one has been specified.
The encoding uses only printing
ASCII
characters and includes the
mode of the file and the operand
name
for use by
uudecode
The
uudecode
utility transforms
uuencoded
files (or by default, the standard input) into the original form.
The resulting file is named either
name
or (depending on options passed to
uudecodeoutput_file
and will have the mode of the original file except that setuid
and execute bits are not retained.
The
uudecode
utility ignores any leading and trailing lines.
The following options are available for
:
-m
Use the Base64 method of encoding, rather than the traditional
algorithm.
-o output_file
Output to
output_file
instead of standard output.
The following options are available for
uudecode
-c
Decode more than one uuencoded file from
file
if possible.
-i
Do not overwrite files.
-m
When used with the
-r
flag, decode Base64 input instead of traditional
input.
Without
-r
it has no effect.
-o output_file
Output to
output_file
instead of any pathname contained in the input data.
-p
Decode
file
and write output to standard output.
-r
Decode raw (or broken) input, which is missing the initial and
possibly the final framing lines.
The input is assumed to be in the traditional
encoding, but if the
-m
flag is used, or if the utility is invoked as
b64decode
then the input is assumed to be in Base64 format.
-s
Do not strip output pathname to base filename.
By default
uudecode
deletes any prefix ending with the last slash '/' for security
reasons.
EXAMPLES
The following example packages up a source tree, compresses it,
uuencodes it and mails it to a user on another system.
When
uudecode
is run on the target system, the file ``src_tree.tar.Z'' will be
created which may then be uncompressed and extracted into the original
tree.
tar cf - src_tree | compress |
uuencode src_tree.tar.Z | mail sys1!sys2!user
The following example unpacks all uuencoded
files from your mailbox into your current working directory.
uudecode -c < $MAIL
The following example extracts a compressed tar
archive from your mailbox
