GNU shtool -- The GNU Portable Shell Tool
 Copyright (c) 1994-2002 Ralf S. Engelschall <[email protected]>

 http://www.gnu.org/software/shtool/
 ftp://ftp.gnu.org/gnu/shtool/

 The GNU shtool program is a compilation of small but very stable and
 portable shell scripts into a single shell tool. All ingredients
 were in successful use over many years in various free software
 projects. The compiled shtool program is intended to be used inside
 the source tree of free software packages. There it can take over
 various (usually non-portable) tasks related to the building and
 installation of such packages.