pr printparse
cd ../man6 ; nroff naa pi.6 ; cd ../pi
pr READ_ME
ls -ls | pr
pr sizes
number pi_strings | pr -t
pr makepi
pr comp gram load whoami
pr ../opcodes/picture
a.out -C | pr
pr 0.h
pr main.c
pr pas.y
pr y.output
pr yy.h
pr yy*.c
pr error.c subr.c