ping hosts from config file

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# 1  
Old 01-26-2008
ping hosts from config file


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.
# 2  
Old 01-29-2008

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:
while read line
  for hostname in `echo $line | cut -d '=' -f 2 | sed 's/:/ /g'`
    if ! ping -s $hostname 1 1 > /dev/null
      echo "host $hostname not pingable"

usage: < configfile.txt > logfile.txt

(Untested - you will probably need to debug a bit)
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