ping script to count live hosts

linux833 · 02-05-2014, 11:55 AM

Dears,

i would need your help to get this script some modification, this script will print
the live hosts, i need only to count the word "up" then i will know how many hosts are up on the network:

Code:

#!/bin/bash

is_alive_ping()
{
  ping -c 1 $1 > /dev/null
  [ $? -eq 0 ] && echo Node with IP: $i is up.
}

for i in 192.168.0.{1..254} 
do
is_alive_ping $i & disown 
done

appreciate any help.

teckk · 02-05-2014, 01:09 PM

I would recommend

Code:

nmap -sP 192.168.0.0/24

Habitual · 02-05-2014, 01:52 PM

ping a LOT of hosts for up|down

linux833 · 02-06-2014, 04:31 AM

Thanks teckk and Habitual for your respond, what i need is just to add "count" option so the output will show only the numeric of "up" hosts like 60 or 10 base on
counting "up" keyword and print only the number.

can you help me on this.

Mohamed.

Habitual · 02-06-2014, 08:34 AM

Sure, what do you have so far?

linux833 · 02-06-2014, 03:58 PM

what i need, is only to count the number of "up" hosts, the scrip that i post output:

Node with IP: 192.168.0.3 is up.
Node with IP: 192.168.0.1 is up.
Node with IP: 192.168.0.12 is up.
Node with IP: 192.168.0.10 is up.
Node with IP: 192.168.0.15 is up.
Node with IP: 192.168.0.20 is up.
Node with IP: 192.168.0.45 is up.
Node with IP: 192.168.0.90 is up.
Node with IP: 192.168.0.60 is up.
Node with IP: 192.168.0.16 is up.
Node with IP: 192.168.0.11 is up.
Node with IP: 192.168.0.18 is up.
Node with IP: 192.168.0.21 is up.
Node with IP: 192.168.0.4 is up.

i need the script to count the "up" keyword and give me the output as only:

14

even no need for the full output like "Node with IP: 192.168.0.4 is up" main purpose is to count up hosts at a given time of running the script.i need to run the script multiple time against subnet for troubleshooting purpose not monitoring or administration.

any help will be appreciated.

Mohamed.

Habitual · 02-06-2014, 05:27 PM

Quote:

Originally Posted by linux833

i need the script to count the "up" keyword and give me the output as only

What script is that exactly?

linux833 · 02-07-2014, 06:52 AM

Quote:

Originally Posted by Habitual

What script is that exactly?

Hi, this script:

Code:

#!/bin/bash

is_alive_ping()
{
  ping -c 1 $1 > /dev/null
  [ $? -eq 0 ] && echo Node with IP: $i is up.
}

for i in 192.168.0.{1..254} 
do
is_alive_ping $i & disown 
done

i need to modified it to count only up keyword, then i will know how many up host on the network.

pan64 · 02-07-2014, 06:57 AM

you can modify this line:
[ $? -eq 0 ] && echo Node with IP: $i is up.
to (not only print the node, but) count them

linux833 · 02-07-2014, 07:15 AM

Quote:

Originally Posted by pan64

you can modify this line:
[ $? -eq 0 ] && echo Node with IP: $i is up.
to (not only print the node, but) count them

Hi pan64,
could you please help me to get needed change, appreciated.

Habitual · 02-07-2014, 08:32 AM

Quote:

Originally Posted by linux833

Hi, this script:

Code:

#!/bin/bash

is_alive_ping()
{
  ping -c 1 $1 > /dev/null
  [ $? -eq 0 ] && echo Node with IP: $i is up.
}

for i in 192.168.0.{1..254} 
do
is_alive_ping $i & disown 
done

i need to modified it to count only up keyword, then i will know how many up host on the network.

looks familiar.
http://www.linuxquestions.org/questi...script-578420/

linux833 · 02-07-2014, 09:52 AM

Hi Habitual,

let check this, thanks alot for your help.

Habitual · 02-07-2014, 11:57 AM

You're very welcome.

mina86 · 02-10-2014, 06:20 PM

https://github.com/mina86/tinyapps/b...r/pingrange.pl