12.2.4. Examples
Run chap1 through the tbl preprocessor, then
format the result using the mm macros,
with register N set to 5
(sets the page-numbering style), etc.:
tbl chap1 | troff -mm -rN5 | spooler &
Format chap2 using the ms macros;
the first page is 7, but print
only pages 8–10, 15, and 18 through the end of the file:
nroff -ms -n7 -o8-10,15,18- chap2 | col > chap2.txt &