shell脚本，循环的记录

   #########################################################################
   # File Name: showlogged.sh
   # Author: zhang yunabo
   # mail: ma6174@.com
   # Created Time: Mon  Aug  :: AM EDT
   #########################################################################
   #!/bin/bash
   declare -i debug=
   declare -i count=
  declare -i showusers=

  for i in `seq  $#`;do
      if [ $# -gt  ];then
          case $ in
              -h|--help)
                  echo "usage:`basename $0` -h|--help -c|--counts -v|--verbose"
                  exit ;;
              -v|--verbose)
                  let debug+=;;
              -c|--counts)
                  let count+=;;
              *)
                  echo "usage:`basename $0` -h|--help -c|--counts -v|--verbose"
                  exit ;;
          esac
      fi
      shift
  done

  if [ $count -eq  ]
  then
      echo "loged user :`who | wc -l`"
  fi
  if [ $debug -eq  ]
  then
      w
  fi