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ping for multiple hosts, check /etc/hosts is online
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| #!/bin/sh | |
| HOSTS=/etc/hosts | |
| MEHOST=$(hostname) | |
| DNSHOST=$(cut -d' ' -f2 /etc/resolv.conf) | |
| GWHOST=$(ip route | grep default | cut -d' ' -f3) | |
| IGNORE="^$\|^#\|^127\|$MEHOST\|$DNSHOST" | |
| #echo $IGNORE | |
| HOSTS=$(grep -v $IGNORE $HOSTS | tr '\t' ' ' | cut -d' ' -f1 | sort | uniq) | |
| for H in $HOSTS; do | |
| ping -q -c1 -w1 $H >/dev/null 2>&1 | |
| if [ "$?" -eq 0 ]; then | |
| echo $H | |
| fi | |
| done |
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