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PDKSH is the Public Domain Korn Shell. Its command language is a superset of the sh(1) shell language.

rssh is a restricted shell for use with OpenSSH, allowing only scp and/or sftp. It now also includes support for rdist, rsync, and CVS. For example, if you have a server which you only want to allow users to copy files off of via scp, without providing shell access, you can use rssh to do that.

In the Unix tradition, it works with things already there and fills a empty niche. When incorporating it into your Unix environment, you keep your command line shell, your editor, your pager, and access to all your tools, tricks and know-how. Vshnu can operate as an optional supplemental visual mode to your command line shell. You switch between command line and visual mode easily as you wish. Your interface bandwidth and power for Unix operations is on a higher plane and life gets sweeter.

Catfish is a GTK based search utility.

This extension allows changing the current process' name on Linux and *BSD systems. This is useful when using pcntl_fork() to identify running processes in process list

Archivemount is a piece of glue code between libarchive (http://people.freebsd.org/~kientzle/libarchive/) and FUSE (http://fuse.sourceforge.net). It can be used to mount a (possibly compressed) archive (as in .tar.gz or .tar.bz2) and use it like an ordinary filesystem.

confman is a configuration manager written in bash. confman uses Subversion to provide a revision-controlled environment for editing and deploying configuration files. With confman, you can easily manage configuration files for all or any subset of your machines.

ConsoleKit is a framework for defining and tracking users, login sessions, and seats. The primary motivations for this framework are to facilitate fast-user-switching and multi-seat capabilities, and to enable more sophisticated policy decisions for desktop sessions.

The Free Software Foundation's core utilities: basename, cat, chgrp, chmod, chown, chroot, cksum, comm, cp, csplit, cut, date, dd, df, dir, dircolors, dirname, du, echo, env, expand, expr, factor, false, fmt, fold, groups, head, hostid, hostname, id, install, join, kill, link, ln, logname, ls, md5sum, mkdir, mkfifo, mknod, mv, nice, nl, nohup, od, paste, pathchk, pinky, pr, printenv, printf, ptx, pwd, readlink, rm, rmdir, seq, sha1sum, shred, sleep, sort, split, stat, stty, su, sum, sync, tac, tail, tee, test, touch, tr, true, tsort, tty, uname, unexpand, uniq, unlink, uptime, users, vdir, wc, who, whoami, yes Similar utilities to most of these exist in the FreeBSD base system, but many of the GNU versions have added functionality that is useful. Note that this port will install these utilities with a `g' prefix, for example gdate, gexpr, and gtest, but the texinfo documentation will refer to them without the `g' prefix. GNU su does not support a wheel group. This port installs it without the suid bit, unless you define WITH_SUID while building.

dd_rescue is a dd tool with following features suitable for rescuing data from a medium with errors. - Don't abort on errors on the input file unless the user specify the maximum error number. - Don't truncate the output file. - Can use two different block sizes for normal operation and the case of errors. - Can start from the end of the file and move backwards.