I remember we used to write a kind of document database, using rcs and Perl, with versioning et al. This is to index all kinds of Text files of various formats.

I remember we used to write a kind of document database, using rcs and Perl, with versioning et al. This is to index all kinds of Text files of various formats. This was before JSON and XML got so big as data exchange formats. Its almost like several of these projects existed for long until people came around took them a little more seriously and built businesses around them. This also reminds me using the Unix DBM's do all kinds of key-value store work. Long before things like Redis and Memcached were around.