.bp 
.au "TSC \- intro.xx"

.c
The tfiles Program

.2
\f(BItfiles\fB is the solution to all those times you've
run 
\f(BIgrep\fB, 
\f(BIlpr\fB, 
or some similar utility on a non-text files.

.2
This program looks at its arguments and spits out only those
that are plain files and \s-1ASCII\s0 text files.

.b
grep foo `tfiles /usr/include/*`
.e

.2
It's important that you check the 
.T \-f
before the 
.T \-T .