#!/bin/sh -u
#  $0 [filenames...]
#
#  From the command line arguments, select only arguments that are
#  readable file names.  (Print warnings and skip over non-files or
#  unreadable arguments.)  Output one line per file in this format:
#
#    $ ./foo one . two .. nosuch
#    The file 'one' contains    27 lines.
#    Ignored non-file '.'.
#    The file 'two' contains   123 lines.
#    Ignored non-file '..'.
#    Ignored non-file 'nosuch'.
#
# WARNING: Many of the comments in this file are "Instructor-Type"
#   comments and are *not* appropriate for real scripts.  Do not put
#   "Instructor-Type" comments into the scripts that you submit for marking.
#   I put them in my example files because I am teaching you how to
#   write scripts; do not submit my teaching comments back to me again.
#   Read the week7.txt notes for more details on good comment style.
#
# -IAN! idallen@ncf.ca

export PATH=/bin:/usr/bin
umask 022

# This loop iterates over all the command line arguments.
#
for arg do
	if test -f "$arg" ; then
		if test -r "$arg" ; then
			echo "The file '$arg' contains $(wc -l <"$arg") lines."
		else
			echo "Ignored unreadable file '$arg'."
		fi
	else
		echo "Ignored non-file '$arg'."
	fi
done