#!/bin/sh
#
# This script prints out it's command line arguments,
# one per line (using a foreach loop) and includes line numbers
# (shows how to use a variable as a counter)

echo I got $# arguments, and here they are:

# First we show that this doesn't work - the bourne shell
# doesn't understand arithmetic operators:
linenum=0
echo
echo The wrong way first:
for i in $@; do
  echo param $linenum is $i
  linenum=$linenum+1
done

echo
echo "This is the right way:"
# This on works - it uses the expr command
linenum=0

for i in $@; do
  echo param $linenum is $i
  linenum=`expr $linenum + 1`
done