#!/bin/sh
# 
# illustration of command-line parameters
#
echo "Number of command-line parameters $#"
echo "List of command-line parameters: $*"
echo "Parameter #1: $1"
echo "User: $USER"
echo "Shell: $SHELL"
echo "File name of shell script: $0"
echo "PID: $$"
a=17.89        # without a blank around "="!
echo "A set to $a"