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I want to make shell script that takes a list of host names on my network as command line arguments and displays whether the hosts are up or down, using the ping command to display the status of a host and a for loop to process all the host names. Im new to shell scripting so Im not quite sure where to start with this. Thanks for any help -E
you can use a perl script
usage script file count
#!/usr/bin/perl
($file, $n) = @ARGV; # $n is used by ping to expire after sending
# $n packets
print "$file \n";
print "count $n \n";
open (FH, "$file") or die "Cannot open $file:$!\n";
while(<FH>){
system ("ping -c$n $_");
}
close FH;
Here is a bash script that I use which does the same.
Code:
#!/bin/sh
checkhost()
{
echo "Checking host $1..."
ping -c 2 $1 &> /dev/null
if [ $? == 0 ]
then
echo "$1 is running"
else
echo "$1 is not reachable"
fi
}
HOSTLIST="host1 host2"
for hostname in $HOSTLIST
do
checkhost $hostname
done
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