The Heirloom
Toolchest is a collection of standard Unix utilities. Highlights are: Derived from original Unix material released as open source by Caldera; up to four versions of each utility corresponding to SVID3/SVR4, SVID4/SVR4.2, POSIX.2/SUSV2, and 4BSD (SVR4 /usr/ucb); support for lines of arbitrary length and in many cases binary input data; support for multibyte character sets, especially
...Licence : Free to use but restricted