`/bin/ed` has gotten me out of a few serious disk recovery binds in the past. In one of them, a FreeBSD system's `/usr` and `/home` slices got corrupted, but t

`/bin/ed` has gotten me out of a few serious disk recovery binds in the past. In one of them, a FreeBSD system's `/usr` and `/home` slices got corrupted, but they still had entries in `/etc/fstab`. The mount failures prevented further recovery. There were, however, a handful of binaries under `/bin`. Guess which one is really good at editing `/etc/fstab`...