#!/bin/bash
# service script as same as service command which is used in RedHat v.0.1
usage="usage: service  <service name> {start|stop|restart|status}"
if [ "$#" != 2 ]; then
     if [ "$#" == 1 ]; then
          if [ "$1" == "?" ]; then
               ls --color /etc/rc.d/
          elif [ "$1" == "run" ]; then
               ls /var/run/daemons/
          else
               echo $usage
               exit
          fi
     else
          echo $usage
       exit
    fi
else
     ls /etc/rc.d/ | grep $1 > /dev/null
     if [ $? -eq 1 ]; then
          echo -e "error: $1, there is \033[1mno such service\033[0m..."
          exit
     fi
     if [ "$2" == "start" -o "$2" == "restart" -o "$2" == "stop" -o "$2" == "status" ]; then
          # start|restart|stop service
          if [ "$2" != "status" ]; then
               /etc/rc.d/$1 $2
          else
               # check service status
               ls /var/run/daemons/ | grep $1 > /dev/null
               if [ $? -eq 0 ]; then
                    echo -e "$1 is \033[1mrunning\033[0m..."
               elif [ $? -eq 1 ]; then
                    echo -e "$1 is \033[1mstopped\033[0m..."
               fi
          fi
     else
          echo $usage
          exit
     fi
fi