#!/bin/sh
#
# Program: count
# Synopsis: Count the number of lines of input on stdin and test that it
# matches the specified number.
# Syntax: count <number>
set -e
set -u
input_lines=`wc -l`
if [ "$input_lines" -ne "$1" ]; then
echo "count: expected $1 lines and got ${input_lines}."
exit 1
fi
exit 0