- arr, (re)arrange and select fields on each line
- btac, print file in reverse order
- extrace, trace exec() calls system-wide
- fail, crash in various possible ways
- htping, periodically send HTTP requests
- holes, find runs of zero bytes
- lr, list files, recursively
- mblaze, Unix utilities to deal with Maildir
- necho, minimal, sensible alternatives to echo(1)
- notyet, a text-based recursive task tracker
- nq, Unix command line queue utility
- pds, parallel data substitution
- px, search for processes and print top(1)-like status
- rdd, random data dumper
- rdumpfs, a rsync-based dump file system backup tool
- reap, run process until all its spawned processes are dead
- redo-c, an implementation of the redo build system in portable C with zero dependencies
- rnl, remove trailing newlines
- rwc, report when files change
- snooze, run a command at a particular time
- wcal, ISO weekly calendar
- xe, simple xargs and apply replacement