Shell Programming and Scripting

main "$@"

main ()
{
NO_ARGS=0
E_OPTERROR=65

if [ $# -eq "$NO_ARGS" ] # should check for no arguments
then
	echo "Usage: `basename $0` -s<OPTIONS> <HOSTNAME> "
	echo "You must specify interactive, or non interactive mode for now"
	echo "Try './serverstatus -h' for more information."
	exit $E_OPTERROR
fi

while getopts ":sicnvh" Option
do
	case $Option in

		s )
			hostname=`echo $@`
			hostname2=`echo $hostname|awk '{print $2}'`
			echo $hostname2
			a=`nmap $hostname2`

		;;

		i )
			interactivemode_func
		;;

                c )
                       add_serv
                ;;
		n )
			non_interactivemode_func
		;;

		v )
			version_func
		;;

		h )
			help_func
		;;

		* )
			echo "Unimplemented option chosen"
		;;
	esac
done

shift $(($OPTIND - 1))

}

#!/bin/sh

if [ "$#" -gt 3 ]; then
  echo "More than 3 arguments entered" && exit 1
fi

pkgs=""

if [ "$#" -eq 0 ]; then
  echo "Please enter a space seperated list of packages"
  read pkgs
fi

if [ -z "$pkgs" ]; then
  # user must have supplied some arguments
  for file in "$@"
  do
    # then install $file as you want
  done
else
  for file in "$pkgs"
  do
   # then install $file as you want
  done
fi

exit 0