outguess(1) on Linux
The text b3efcea0bad2, as Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it.
universal steganographic tool
Flags it lists
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-F -
-dD -
-eE -
-iI -
-kK -
-m -
-p -
-r -
-sS -
-t -
-x