This file is indexed.

/usr/bin/routef is in iproute 20111117-1ubuntu2.

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

if [ -z "$*" ] ; then
	exec ip -4 ro flush  scope global  type unicast
else
	echo "Usage: routef"
	echo
	echo "This script will flush the IPv4 routing table"
fi