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#1
01-26-2008
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ping hosts from config file
Hello,
I have config files for my storage where file systems are exported to lots of hosts as root. I need to write a script in ksh to somehow filter these hosts from the file and ping those and if pingable than do nothing but if not pingable than send an alert to a log file which says: host xyz not pingable: file looks like as follows: /vol/vol1/apps_data01 -sec=sys,rw,root=unixsrv1:unixsrv2:unixsrv3:mercury:mercury01:sunprd01:sunprd02 /vol/vol1/apps_data02 -sec=sys,rw,root=unixsrv1:unixsrv2:unixsrv3:mercury:mercury01:sunprd01:sunprd02 /vol/vol1/apps_data03 -sec=sys,rw,root=unixsrv1:unixsrv2:unixsrv3:mercury:mercury01:sunprd01:sunprd02 /vol/vol1/apps_data04 -sec=sys,rw,root=unixsrv1:unixsrv2:unixsrv3:mercury:mercury01:sunprd01:sunprd02 . . /vol/vol1/apps_data45 -sec=sys,rw,root=unixsrv1:unixsrv2:unixsrv3:mercury:mercury01:sunprd01:sunprd02:hpprod07:ibmprod43 I have about 26 of these files on each storage host where hosts names are same and different: I do not how to capture host names from the file and complete this logic. Appreciate your help on this. 
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#2
01-29-2008
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Not the most efficient solution (ideally you'd pull out all the hostnames, from all the lines then remove duplicates) but you can do this:
Code:
#!/bin/sh
while read line
do
for hostname in `echo $line | cut -d '=' -f 2 | sed 's/:/ /g'`
do
if ! ping -s $hostname 1 1 > /dev/null
then
/bin/true
else
echo "host $hostname not pingable"
fi
done
done
(Untested - you will probably need to debug a bit)
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