From William Kyngesburye:
unRAR command line utility. See rarlab.com
for a CLI rar
for Mac OS X. This unrar adds a small patch to handle old Mac OS 9 RAR archives with Mac ASCII characters in the archived file names, NOT included in the RarLab distribution.
What's new in this version:
New unrar version, for real (the old 3.5b5 installer had an old version of unrar).