/usr/bin/mkocp is in texlive-binaries 2017.20170613.44572-8ubuntu0.1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 | #!/bin/sh
# Initial definition. Will leave the .ocp file in the local directory.
(
otp2ocp `basename "$1" .ocp` || exit 1
) 1>&2 </dev/null
echo `basename "$1" .ocp`.ocp
|