#!/bin/sh -u
# Perform several tests on the first argument to this script.
# Reference: Chapter 11
# If no arguments, do the tests on /etc/passwd instead.
# More file-testing operations by the TEST command in an IF statement
# For a larger list of file-testing operators used by TEST, see p.372
# -IAN! idallen@ncf.ca

# First, find out which pathname we are going to be testing.
#
if [ $# -ge 1 ] ; then
    	# use first argument as pathname (ignores other arguments)
	path="$1"
else
    	# use a default because first argument is missing
	path="/etc/passwd"
fi
echo "You are using pathname '$path'."

if [ -d "$path" ] ; then
	echo "The path '$path' is a directory"
else
	echo "The path '$path' is missing or is not a directory"
fi

if [ ! -w "$path" ] ; then
	echo "The path '$path' is missing or is not writable"
else
	echo "The path '$path' is writable"
fi

if [ ! -x "$path" ] ; then
	echo "The path '$path' is missing or is not executable"
else
	echo "The path '$path' is executable"
fi