Plan 9 from Bell Labs’s /usr/web/sources/contrib/gabidiaz/root/sys/src/cmd/perl/t/lib/Filter/Simple
--rw-rw-r-- gabidiaz sys 135 Nov 25 2002 ExportTest.pm --rw-rw-r-- gabidiaz sys 167 Nov 25 2002 FilterOnlyTest.pm --rw-rw-r-- gabidiaz sys 142 Nov 25 2002 FilterTest.pm --rw-rw-r-- gabidiaz sys 237 Nov 25 2002 ImportTest.pm