Bash wrapper which runs a command line only when a directory is in a NFS volume

nfs_wrapper.sh

#!/bin/bash

if [ $# -ge 1 ] ; then
	folder="$1"
	shift

	if [ -d "$folder" ] ; then
		if df --output=fstype "$folder" | grep -qF nfs ; then
			# Launch the guarded program here
			eval "$@"
		else
			echo "Target folder is not mounted. Stopping script execution" 1>&2
			exit 2
		fi
	else
		echo "Target folder does not exist. Stopping script execution" 1>&2
		exit 1
	fi
fi