インタラクティブな同時ping検出スクリプト

 
  
#!/bin/bash 
  
#********************************# 
  
#2013-01-11 17:00:00 wanggy exp  # 
  
#note:ping monitor               # 
  
#********************************# 
  
set -u 
  
ping_fun() 
  
{ 
  
    d_network=192.168.1 
  
    echo -n "input the network(default $d_network):" 
  
    read network 
  
    : ${network:=$d_network} 
  
    echo "network:$network" 
  
    d_hostip_beg=1 
  
    d_hostip_end=254 
  
    echo -n "input the hostip(default $d_hostip_beg $d_hostip_end):" 
  
    read hostip_beg hostip_end 
  
    : ${hostip_beg:=$d_hostip_beg} 
  
    : ${hostip_end:=$d_hostip_end} 
  
    echo "hostip_beg:$hostip_beg" 
  
    echo "hostip_end:$hostip_end" 
  
            if [ $hostip_beg -gt $hostip_end ];then 
  
                    echo "$hostip_beg greater than $hostip_end!!!" 
  
                    exit 0 
  
            fi 
  
    : >pinglog 
  
    : >pingerrlog 
  
    ping_count=3 
  
    for ((hostip=$hostip_beg;hostip<=$hostip_end;hostip++));do 
  
    { 
  
            host=$network.$hostip 
  
            echo " ping $host" 
  
            ping -c $ping_count $host >/dev/null 
  
                    if [ $? = 0 ];then 
  
                            echo "$host is up" 
  
                            echo "$host is up" >>pinglog 
  
                    else 
  
                                    echo "$host is down" 
  
                                    echo "$host is down" >>pingerrlog 
  
                    fi 
  
}& 
  
   done 
  
wait 
  
} 
  
main() 
  
{ 
  
    echo "---- ping ----" 
  
    ping_fun 
  
} 
  
main 
  
exit 0