Simple - but complete enough - command-line Bash debugger, written as a Bash script. No installation and no root permission required: just download, put every where you prefer and use it.
Bash 3 required.
AdminStack framework helps to manage servers and user accounts. It is automation tool with central database for keeping key info about IT infrastructure and users. Adminstack makes separate systems to be managed centrally by simply editing XML file.
uniread - universal readline - adds full readline support (command editing, history, etc.) to any existing interactive command-line program. Common examples are Oracle's sqlplus or jython.
uniread will work on any POSIX platform with Perl.