dzen2-textwidth(1) on Linux
The text 0da21010ce26, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it. The page shows this text now.
calculate the width in pixels of text for a given font.