This is TeX, Version 0.9 (INITEX)  2 DEC 1982 23:15
**trip
(TRIP.TEX
> \rip .
l.30   \showthe\font
                    

! Illegal unit of measure (replaced by filll).
l.35 ...ip200 = 10pt plus5fillll
                                minus 0 fill
I dddon't go any higher than filll.

\one \csname 
Beginning to dump on file TRIP.FMT (format=trip 82.12.2)
1126 strings of total length 22525
428 memory locations dumped; current usage is 81&239
280 multiletter control sequences
\font\rip=trip
\font\smalltrip=trip at 5.0pt
\font\bigtrip=trip at 20.0pt
540 words of font info for 3 preloaded fonts
1 hyphenation exception
Hyphenation trie of length 137 has 5 ops
No output file.