Plan 9 from Bell Labs’s /usr/web/sources/contrib/gabidiaz/root/sys/src/cmd/perl/lib/Filter
d-rwxrwxr-x gabidiaz sys 0 Jul 15 2018 Simple --rw-rw-r-- bootes sys 20509 Nov 25 2002 Simple.pm d-rwxrwxr-x gabidiaz sys 0 Jul 15 2018 Util