"strace is free software governed by a BSD-style license. It was
originally written by Paul Kranenburg for SunOS and was inspired by
the SunOS trace utility. The SunOS version was ported to Linux by
Branko Lankester, who also wrote the Linux kernel support. In 1993,
Rick Sladkey merged strace 2.5 for SunOS and the second release of
strace for Linux, added many of the features of truss(1) from SVR4,
producing an strace that worked on both platforms. Today, strace is
maintained by Wichert Akkerman and Roland McGrath. strace is
available in Red Hat Enterprise Linux 4 at version 4.5.8, Fedora
Core 4 at version 4.5.11, and is also available at version 4.5.12
from SourceForge.net. Version 4.5.12 is discusses in this
article."
