Shell Programming and Scripting

Perhaps you can map IPs to host names, like this

Code:

hst=`getent hosts "$i" | awk '{print $2}'`
echo "IP=$ip host="$hst

?

I like MadeInGermany's idea of doing a host name lookup as this will involve less maintenance of your script, but it would involve ensuring all these machines are entered in the hosts file.

But if your trying to associate two lists as a learning exercise you could tackle it like this:

Code:

IP=( 
  10.66.1.133  10.66.6.133  10.66.7.133  10.66.0.133
  10.66.1.5    10.66.2.133  10.66.4.133  10.66.3.133
  10.66.5.133  10.66.2.5    10.66.3.5    10.66.7.5
  10.66.0.5    10.66.6.5    10.66.4.5    10.66.5.5 )
BN=( 
    TIRUNELVELIUNITI TIRUNELVELIUNITII TIRUNELVELICAB  TENKASI
    KOVILPATTI       TUTICORIN         THIRUCHENDURE   SRIVAIKUNDAM
    VALLIOOR         NAGERCOILUNITI    NAGERCOILUNITII THUCALAY
    KUZHITHURAI      SANKARANKOIL      CHERANMAHADEVI  AMBAI )

printf "1. connections available and listing those ips\n"
printf "2. connections not avialble and listing those ips\n"
while true
do
    printf "\n\nPlease select you choice [1-2]: "
    read
    printf "\n"
    CNT=0
    list=""
    case $REPLY in
       1|2) for((i=0;i<${#IP[@]};i++))
          do
              echo ping -c 1 -W 1 ${IP[i]}
              if ping -n 1 ${IP[i]} 2>&1 2>&1 | egrep -q "unreachable|100%"
              then
                 [ $REPLY -eq 2 ] && let CNT=CNT+1 && list="$list\n${BN[i]} ${IP[i]}"
              else
                 [ $REPLY -eq 1 ] && let CNT=CNT+1 && list="$list\n${BN[i]} ${IP[i]}"
              fi
          done
          [ $REPLY -eq 1 ] && printf "$CNT connections are available\n\nIPs are,$list"
          [ $REPLY -eq 2 ] && printf "$CNT connections are not available\n\nIPs are,$list" ;;
       *) printf "Invalid choice\n\n"
          break
       ;;
    esac
done

I think you are genious chubler . 100 crores of thanks to you.
I have another question,please I want to add Branchcode(BC) also with ipaddress(IP) and BranchNames(BN) in output.


[code]IP=(
10.66.1.133 10.66.6.133 10.66.7.133 10.66.0.133
10.66.1.5 10.66.2.133 10.66.4.133 10.66.3.133
10.66.5.133 10.66.2.5 10.66.3.5 10.66.7.5
10.66.0.5 10.66.6.5 10.66.4.5 10.66.5.5 )

BC=(753 74P 74U 666
667 74W 74Z 32A
74G 754 7251 74S
300 74H 32B 74E)

BN=(
TIRUNELVELIUNITI TIRUNELVELIUNITII TIRUNELVELICAB TENKASI
KOVILPATTI TUTICORIN THIRUCHENDURE SRIVAIKUNDAM
VALLIOOR NAGERCOILUNITI NAGERCOILUNITII THUCALAY
KUZHITHURAI SANKARANKOIL CHERANMAHADEVI AMBAI )



Please Select your choice[1-3]: 1
1.How many branchnetwork connections are available .
2.How many branch network connections are not available.
3.Exit

14 branch network connections are working fine.

753 TIRUNELVELIUNITI 10.66.1.133

74P TIRUNELVELIUNITII 10.66.6.133

74U TIRUNELVELIUNITCAB 10.66.7.133

666 TENKASI 10.66.0.133

667 KOVILPATTI 10.66.1.5

74WTUTICORIN 10.66.2.133

74Z THIRUCHENDURE 10.66.4.133

32A SRIVAIKUNDAM 10.66.3.133

74G VALLIOOR 10.66.5.133

754 NAGERCOILUNITI 10.66.2.5

7251 NAGERCOILUNITII 10.66.3.5

74S THUCALAY 10.66.7.5

300 KUZHITHURAI 10.66.0.5

74H SANKARANKOIL 10.66.6.5

Please Select your choice[1-3]: 2
1.How many branchnetwork connections are available .
2.How many branch network connections are not available.
3.Exit

2 branch network connections are not available.

32B CHERANMAHADEVI 10.66.4.5

74E AMBAI 10.66.5.5