/usr/lib/ltp/runtest/pty is in ltp-kernel-test 20091231+dfsg-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | #DESCRIPTION:Terminal type stress
pty01 pty01
ptem01 ptem01
hangup01 hangup01
|