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Old 05-22-2002, 04:07 PM   #1
ewarmour
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Registered: May 2001
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BASH Shell scripting help


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
 
Old 05-22-2002, 11:54 PM   #2
neo77777
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Registered: Dec 2001
Location: Brooklyn, NY
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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;

Last edited by neo77777; 05-22-2002 at 11:57 PM.
 
Old 05-23-2002, 04:40 AM   #3
Mik
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Registered: Dec 2001
Location: The Netherlands
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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
 
Old 05-23-2002, 05:00 AM   #4
Brion
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Registered: May 2002
Location: Belgium
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http://www.tldp.org/LDP/abs/html/index.html

here u can find a book that teaches u everything u need to know about bash scripting
 
Old 05-23-2002, 11:05 AM   #5
ewarmour
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Registered: May 2001
Posts: 19

Original Poster
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Right on...

Thanks for the help you guys. Good stuff. -E
 
Old 05-23-2002, 11:28 AM   #6
ewarmour
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Registered: May 2001
Posts: 19

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Got it going

Thanks again for the help -E
 
Old 05-24-2002, 09:01 AM   #7
vfs
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Registered: Apr 2002
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I realize why should one post so much the same!

I replied a similar message some minutes ago, from the same guy.

If I knew he had this bunch of answers, I'd save my time looking other msgs...

Damn!

vfs
 
Old 05-24-2002, 01:31 PM   #8
acid_kewpie
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well that's why you should NEVER reply to posts that have already been identified as doubleposts.... only makes you look dumb!
 
Old 05-25-2002, 08:10 AM   #9
vfs
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I didn't see any mention about double/crossposting. If I did, I surely wouldn't answer... Maybe I'm growing blind

vfs
 
  


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