Provided by: sharutils_4.11-1_i386
uuencode, uudecode - encode a binary file, or decode its representation
uuencode [-m] [ file ] name
uudecode [-o outfile] [ file ]...
Uuencode and uudecode are used to transmit binary files over channels
that support only simple ASCII data.
Uuencode reads file (or by default the standard input) and writes an
encoded version to the standard output, using only printable ASCII
characters. The encoded output begins with a header, for use by
uudecode, which records the mode of the input file and suggests name
for the decoded file that will be created. (If name is /dev/stdout
then uudecode will decode to standard output.) The encoding has the
format documented at uuencode(5), unless the option -m is given, when
base64 encoding is used instead.
Note: uuencode uses buffered input and assumes that it is not hand
typed from a tty. The consequence is that at a tty, you may need to
hit Ctl-D several times to terminate input.
Uudecode transforms uuencoded files (or standard input) into the
original form. The resulting file is named name (or outfile if the -o
option is given) and will have the mode of the original file except
that setuid and execute bits are not retained. If outfile or name is
/dev/stdout the result will be written to standard output. Uudecode
ignores any leading and trailing lines. The program determines from
the header which of the two supported encoding schemes was used.
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
tar cf - src_tree | compress | uuencode src_tree.tar.Z | mail
compress(1), mail(1), uucp(1), uuencode(5)
This implementation is compliant with P1003.2b/D11.
If more than one file is given to uudecode and the -o option is given
or more than one name in the encoded files are the same the result is
probably not what is expected.
The encoded form of the file is expanded by 37% for UU encoding and by
35% for base64 encoding (3 bytes become 4 plus control information).
Report bugs to <firstname.lastname@example.org>. Please put sharutils or
uuencode in the subject line. It helps to spot the message.
The uuencode command appeared in BSD 4.0.