#!/bin/sh
# Add ID to used ID list

if [ $# -lt 1 ]
then
   echo -e "Usage: $0 \"client name\" ID\n"
   exit

elif [ $# -gt 2 ]
then
   echo -e "Usage: $0 \"client name\" ID\n"
   exit

else
   if [ $2 -gt 9999 ]
   then
      echo -e "ID must between 1-9999\n"
      exit

   elif [ $2 -lt 10 ]
   then
      echo "000$2 $1" >> /etc/IDs

   elif [ $2 -lt 100 ]
   then
      echo "00$2 $1" >> /etc/IDs

   elif [ $2 -lt 1000 ]
   then
      echo "0$2 $1" >> /etc/IDs

   else
      echo "$2 $1" >> /etc/IDs

   fi
fi

