Reference

ptex2tex(1) on Linux

The text 2b490ce39abd, as Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it. The page shows this text now.

Executable script associated with ptex2tex module.

Flags it lists

ptex2tex(1) on Linux now