This file is indexed.

/usr/bin/pphs is in ghostscript 9.22~dfsg+1-0ubuntu1.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

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#!/bin/sh
# Print the Primary Hint Stream from a linearized PDF file.  Usage:
#	pphs filename.pdf
# Output goes to stdout.

# This definition is changed on install to match the
# executable name set in the makefile
GS_EXECUTABLE=gs
gs="`dirname \"$0\"`/$GS_EXECUTABLE"
if test ! -x "$gs"; then
	gs="$GS_EXECUTABLE"
fi
GS_EXECUTABLE="$gs"

exec "$GS_EXECUTABLE" -q -P- -dSAFER -dNODISPLAY -- pphs.ps "$@"