xwintoppm(1x) on Linux
The text 5a22f83876af, as Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 4.0 (Etch), Debian 3.1 (Sarge), Debian 3.0 (Woody), Debian 2.2 (Potato), Debian 2.1 (Slink) shipped it.
dump an image of an X window
Flags it lists
-
-add -
-display -
-frame -
-help -
-icmap -
-id -
-name -
-nobdrs -
-out -
-root -
-screen -
-silent -
-xy