I used extensively Midnight commander on a SunOS workstation for quickly browsing source codebases that spanned thousands of files without launching XEmacs. B

I used extensively Midnight commander on a SunOS workstation for quickly browsing source codebases that spanned thousands of files without launching XEmacs. But for me the killer feature was having special popup menus (configurable per directory!) that could launch scripts on top of the selected files was pretty powerful. For example in the pre-subversion days I could check-in a bunch of files that were changed into the repository using a proprietary tool from my employer with just a couple of keystrokes.