J'ai 10 adresses IP que je dois interroger quotidiennement pour vérifier. Comment puis-je le faire en utilisant le script BASH. Pour que je puisse automatiser cette tâche en utilisant cron. Je veux seulement le script BASH.
Je vous remercie.
Comme votre plage d'adresses IP n'a pas de symétrie et qu'il n'y a que 10 nœuds, je suggérerais de les lister dans un fichier texte. Je considère que le fichier contenant la liste est list.txt
qui contient la liste des adresses IP une à chaque ligne, comme indiqué ci-dessous,
10.12.13.14
172.15.48.3
192.168.45.54
...
48.114.78.227
Vous pouvez utiliser ce script,
#!/bin/bash
# Program name: pingall.sh
date
cat /path/to/list.txt | while read output
do
ping -c 1 "$output" > /dev/null
if [ $? -eq 0 ]; then
echo "node $output is up"
else
echo "node $output is down"
fi
done
Pour mettre à jour le statut d'exécution de vos nœuds à un intervalle de 30 minutes, utilisez crontab.
*/30 * * * * /path/to/pingall.sh > /path/to/log.txt
Sortie de log.txt
$ cat /path/to/log.txt
Fri Jan 31 15:06:01 IST 2014
node 10.12.13.14 is up
node 172.15.48.3 is up
node 192.168.45.54 is up
...
node 48.114.78.227 is down
#!/bin/bash
while read hostname
do
ping -c 1 -t 1 "$hostname" > /dev/null 2>&1 &&
echo "Ping Status of $hostname : Success" ||
echo "Ping Status of $hostname : Failed"
done < Host.txt
$ cat Host.txt
Host1.example.com
192.168.0.123
8.8.8.8
...
...
google.com
Voir:
http://www.thelinuxtips.com/2012/06/Shell-script-to-ping-multiple-hosts/
Vérifiez ce script.
#!/bin/bash
for i in `seq ${2} ${3}`
do
ping -c 1 ${1}.${i} > /dev/null 2>&1
if [ $? -eq 0 ]; then
echo "${1}.${i} responded."
else
echo "${1}.${i} did not respond."
fi
done
Pour exécuter ./script 192.168.1 0 10 par exemple, cela vérifiera les ips 192.168.1.0 à 192.168.1.10 et echo répondra si ping est ok et ne répond pas sinon.
NB: Vous pouvez remplacer $ 1 $ 2 $ 3 $ par des variables statiques si la plage et les adresses IP sont toujours les mêmes.
Bien
Aussi simple que cela: Utilisez la commande parallel --gnu
puis votre commande.
Obtenez les exemples d'IP:
$ Dig +trace google.com |ipx
127.0.0.1
127.0.0.1
199.7.91.13
199.7.91.13
192.48.79.30
192.48.79.30
173.194.33.161
173.194.33.165
173.194.33.163
173.194.33.164
173.194.33.174
173.194.33.160
173.194.33.167
173.194.33.166
173.194.33.162
173.194.33.169
173.194.33.168
216.239.32.10
216.239.32.10
$ parallel --gnu ping -c1 ::: `Dig +trace google.com |ipx`
PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data.
64 bytes from 127.0.0.1: icmp_req=1 ttl=64 time=0.018 ms
--- 127.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.018/0.018/0.018/0.000 ms
PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data.
64 bytes from 127.0.0.1: icmp_req=1 ttl=64 time=0.017 ms
--- 127.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.017/0.017/0.017/0.000 ms
PING 173.194.33.132 (173.194.33.132) 56(84) bytes of data.
64 bytes from 173.194.33.132: icmp_req=1 ttl=54 time=20.5 ms
--- 173.194.33.132 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 20.526/20.526/20.526/0.000 ms
PING 173.194.33.131 (173.194.33.131) 56(84) bytes of data.
64 bytes from 173.194.33.131: icmp_req=1 ttl=54 time=20.7 ms
echo 192.168.1.1 192.168.1.2 192.168.1.3 | xargs -n1 ping -w 1
ou avec grep, voir uniquement les noeuds non ping
echo 192.168.1.1 192.168.1.2 192.168.1.3 | xargs -n1 ping -w 1 | grep -b1 100
Supposons que vous ayez 5 adresses IP (pour réduire la réponse uniquement), vous pouvez alors leur envoyer une requête ping avec
#!/usr/bin/bash
for i in xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx xxx.xxx.xxx.xxxx
do
ping -c 5 $i
done
Remarque: Pas de crochets, pas de virgules (,) entre les IP.
J'espère que cela pourra aider.
Ex:
[raja @ scripts]$ cat ping.sh
for i in 74.125.236.70 98.139.183.24 65.55.206.228 91.189.94.156 198.252.206.24
do
ping -c 5 $i
done
[raja @ scripts]$ ./ping.sh
PING 74.125.236.70 (74.125.236.70) 56(84) bytes of data.
64 bytes from 74.125.236.70: icmp_seq=1 ttl=128 time=11.5 ms
64 bytes from 74.125.236.70: icmp_seq=2 ttl=128 time=11.0 ms
64 bytes from 74.125.236.70: icmp_seq=3 ttl=128 time=10.9 ms
64 bytes from 74.125.236.70: icmp_seq=4 ttl=128 time=16.5 ms
64 bytes from 74.125.236.70: icmp_seq=5 ttl=128 time=18.2 ms
--- 74.125.236.70 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4025ms
rtt min/avg/max/mdev = 10.966/13.682/18.291/3.120 ms
PING 98.139.183.24 (98.139.183.24) 56(84) bytes of data.
64 bytes from 98.139.183.24: icmp_seq=1 ttl=128 time=244 ms
64 bytes from 98.139.183.24: icmp_seq=2 ttl=128 time=253 ms
64 bytes from 98.139.183.24: icmp_seq=3 ttl=128 time=255 ms
64 bytes from 98.139.183.24: icmp_seq=4 ttl=128 time=251 ms
64 bytes from 98.139.183.24: icmp_seq=5 ttl=128 time=243 ms
--- 98.139.183.24 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4251ms
rtt min/avg/max/mdev = 243.511/249.623/255.275/4.674 ms
PING 65.55.206.228 (65.55.206.228) 56(84) bytes of data.
From 10.22.96.94 icmp_seq=5 Packet filtered
--- 65.55.206.228 ping statistics ---
5 packets transmitted, 0 received, +1 errors, 100% packet loss, time 14002ms
PING 91.189.94.156 (91.189.94.156) 56(84) bytes of data.
64 bytes from 91.189.94.156: icmp_seq=1 ttl=128 time=240 ms
64 bytes from 91.189.94.156: icmp_seq=2 ttl=128 time=240 ms
64 bytes from 91.189.94.156: icmp_seq=3 ttl=128 time=240 ms
64 bytes from 91.189.94.156: icmp_seq=4 ttl=128 time=240 ms
64 bytes from 91.189.94.156: icmp_seq=5 ttl=128 time=240 ms
--- 91.189.94.156 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4242ms
rtt min/avg/max/mdev = 240.060/240.222/240.309/0.626 ms
PING 198.252.206.24 (198.252.206.24) 56(84) bytes of data.
64 bytes from 198.252.206.24: icmp_seq=1 ttl=128 time=237 ms
64 bytes from 198.252.206.24: icmp_seq=2 ttl=128 time=237 ms
64 bytes from 198.252.206.24: icmp_seq=3 ttl=128 time=237 ms
64 bytes from 198.252.206.24: icmp_seq=4 ttl=128 time=237 ms
64 bytes from 198.252.206.24: icmp_seq=5 ttl=128 time=242 ms
--- 198.252.206.24 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4251ms
rtt min/avg/max/mdev = 237.600/238.575/242.291/1.933 ms