't-file' is a mid 1980's
abbreviation for '
textfile', mainly used to describe
devious electronic documents distributed via
ftp or found on
hack/
phreak/
crack/
anarchy oriented
BBSes.
These include your standard underground electronic magazines like Phrack or 40 hex as well as standalone texts like the Anarchist's Cookbook or various instructions for making boxes (the blue box, for example).