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Not to be confused with Url encoding.
uuencoding is a form of binary-to-text encoding that originated in the Unix programs uuencode and uudecode written by Mary Ann Horton at the University of California, Berkeley in 1980,[1] for encoding binary data for transmission in email systems.
The name "uuencoding" is derived from Unix-to-Unix Copy, i.e. "Unix-to-Unix encoding" is a safe encoding for the transfer of arbitrary files from one Unix system to another Unix system but without guarantee that the intervening links would all be Unix systems. Since an email message might be forwarded through or to computers with different character sets or through transports which are not 8-bit clean, or handled by programs that are not 8-bit clean, forwarding a binary file via email might cause it to be corrupted. By encoding such data into a character subset common to most character sets, the encoded form of such data files was unlikely to be "translated" or corrupted, and would thus arrive intact and unchanged at the destination. The program uudecode reverses the effect of uuencode, recreating the original binary file exactly. uuencode/decode became popular for sending binary (and especially compressed) files by email and posting to Usenet newsgroups, etc.
It has now been largely replaced by MIME and yEnc. With MIME, files that might have been uuencoded are instead transferred with Base64 encoding.
uuencoding is a form of binary-to-text encoding that originated in the Unix programs uuencode and uudecode written by Mary Ann Horton at the University...
The Uuencoding alphabet includes no lowercase characters, instead using ASCII codes 32 (" " (space)) through 95 ("_"), consecutively. Uuencoding uses...
conversions of strings from base 2 to base 36. Senary – Base-6 numeral system Uuencoding Hope, Paco; Walther, Ben (2008), Web Security Testing Cookbook, Sebastopol...
Network Unix-to-Unix, as in uuencode, a data transport encoding .uu, a compressed archive file extension, associated with uuencode Ulster University in Northern...
87. August 1994. Modern versions of shar can deal with binaries, via uuencoding them, but this was not initially the case. "Jack Haverty, email to Header-People...
0700 myfile ... end begin 0700 .rsrc ... end begin 0700 .finfo ... end uuencoding Pictures FAQ Center for the History of Music Theory and Literature BinHex...
Mail Transfer Protocol (SMTP) SOAP with Attachments Unicode and email Uuencoding VPIM Terry Gliedt (May 27, 1996). "Messages - a Multi-Media Mailer". "History...
text. Various techniques were devised to send files over Usenet, such as uuencoding and Base64. Later Usenet software allowed 8 bit Extended ASCII, which...
impossible to send binary data as such. As workarounds, codecs such as Uuencode and later Base64 and yEnc were developed which encoded the binary data...
traffic. The oldest widely used encoding method for binary content is uuencode, from the Unix UUCP package. In the late 1980s, Usenet articles were often...
them internally longer (average one third). The reason is it needs to uuencode the encrypted names to eliminate unwanted characters in the resulting name...
TRICKLE enabled users to request files from Internet FTP servers in 64 Kb UUencoded chunks. The Interchat Relay Network, popularly known as Bitnet Relay,...
submitted to the Internet Engineering Task Force.[citation needed] As with uuencoding, despite its flaws, yEnc remains[when?] active and effective on Usenet...
and then decoded by the recipient. Binary-to-text encodings, such as uuencode and BinHex were typically used. The 8BITMIME command was developed to address...
Look up Uue or uue in Wiktionary, the free dictionary. UUE may refer to: Uuencode Ununennium, symbol Uue for '119', a theoretical chemical element Ukrainian...
and decode the messages back into a binary file (usually using yEnc or Uuencode). The following is an example of an NZB 1.1 file. <?xml version="1.0"...
hexadecimal encoding, subsequent versions of BinHex are more similar to uuencode, but combined both "forks" of the Mac file system together along with extended...
features. Some examples include: support for three encoding standards (MIME, uuencoding and BinHex); a powerful filtering system, so much so that it is possible...
the UUCP name of the local system). Some versions of the suite include uuencode/uudecode (convert 8-bit binary files to 7-bit text format and vice versa)...
Intel Hex Format, Motorola S-Records, Hex Text, C/C++/Java Code, Base64, Uuencoding, RTF, or HTML Arithmetic and bitwise operations on hex data Printing with...
information uptime — Tell how long the system has been running. uudecode uuencode usleep — Pause for N [microseconds] vconfig — VLAN (802.1q) configuration...
original, assuming eight bits per ASCII character), it is more efficient than uuencode or Base64, which use four characters to represent three bytes of data (1⁄3...
and in specifying shar smartness. For example, shar may compress files, uuencode binary files, split long files and construct multi-part mailings, ensure...