`mkid' is a simple, fast, high-capacity, language-independent identifier database tool. Actually, the term `identifier' is too limiting--`mkid' stores tokens, be they program identifiers of any form, literal numbers, or words of human-readable text. `mkid' was originally written by Greg McGary and posted to comp.sources.unix in September 1987. It was then maintained and enhanced by a loose knit group of programmers on the Internet led by Tom Horsley . Tom released `mkid2' on comp.sources.unix in February 1991. Since then, Greg McGary has resumed maintenance and is working on a greatly enhanced version 3 under GPL. See file `COPYING' for copying conditions. See file `INSTALL' for compilation and installation instructions. See file `NEWS' for a list of major changes in the current release. See file `THANKS' for a list of contributors. See file `TODO' for planned enhancements. Send bug reports to . A bug report is an adequate description of the problem: your input, what you expected, what you got, and why this is wrong. Diffs are welcome, but they only describe a solution, from which the problem might be uneasy to infer.