shmux is a program for executing the same command on many hosts in parallel. For each target, a child process is spawned by shmux, and a shell on the target obtained one of the supported methods: rsh, ssh, or sh. The output produced by the children is received by shmux and either output in turn to the user in an easy to read format, or written to files for later processing, making it well suited for use in scripts.
HenPlus is a SQL shell written in Java that works for any database that has JDBC support. It provides commandline history, commandline completion, and can handle multiple connects to different databases at once. Database-independant table dumps, aliases, and variables are also supported.
ded, the directory editor, allows you to navigate multiple file lists or a directory tree, viewing or changing file attributes rapidly. In addition to conventional file information, it operates on files' RCS or SCCS archives, making it useful for source control as well as system administration. It is curses-based.
Pexpect is a Python Expect-like module. It spawns child applications, controls them, and responds to expected patterns in their output. It can be used for automating interactive applications such as ssh, ftp, passwd, telnet, etc. It can be used to automate setup scripts for duplicating software package installations on different servers. It can be used for automated software testing. It should work on any platform that supports the standard Python pty module. Its interface was designed to be easy-to-use, so performing simple tasks is easy. It includes an ANSI/VT100 terminal screen scraping module.
posh is a stripped-down version of pdksh with several improvements that aims for compliance with Debian's /bin/sh policy, and few extra features. Currently, Debian's policy is to adhere to POSIX with the exception of supporting 'echo -n', so posh strives toward compliance with SUSv3 (with the exception of 'echo -n').
Sethi Search Utility is a simple command line utility to submit a search to Google, Yahoo!, or MSN and show the (text) results on standard output. Support for several search engines is included. It's currently in serious need of a re-write, especially to avoid scraping and become a good engine using the search APIs provided.