Binary package “sharutils” in ubuntu precise
shar, unshar, uuencode, uudecode
`shar' makes so-called shell archives out of many files, preparing
them for transmission by electronic mail services. `unshar' helps
unpacking shell archives after reception. Other related utility
programs help with other tasks.
`uuencode' prepares a file for transmission over an electronic
channel which ignores or otherwise mangles the eight bit (high
order bit) of bytes. `uudecode' does the converse transformation.