Pace-IDS is an Intrusion Detection system designed to replace Tripwire, in that it is faster, and more effective of detecting trojan activity, and is easier to configure. All you have to do usually is simply change one variable to your email address.
Command validation tool
cmdok checks that specified commands are OK. If command is OK than it exists in PATH and can be run. It is a simple, small and portable Bash script. It is useful in software packages that want to check that some commands exist before trying to run them. See wiki for more information and examples.
C/C++ system probe, test and automation toolkit
cstem is a portable toolkit for probing and testing C/C++ system. It consist of 4 scripts: cprobe, cltest, cppdef, mkdep. cstem scripts can be used standalone or as part of software build systems. All scripts are portable and have no dependencies. See wiki for more information and examples.