ed - logoman << 'foo'
1i
.pl 999i
.
1,$s/\\f[123]//g
1,$s/\\(em/ ~ /g
1,$g/^\.ft/d
1,$g/^\.cu/d
1,$g/^\.po/d
1,$g/^\.NB/d
1,$g/^\.ti/d
w manfoo
q
foo
nroff manfoo 2>/dev/null | ssp >nrfoo
cd help
rm *
../splithelp ../nrfoo
cd ..
rm manfoo nrfoo