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Command Output Question

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# 1  
Old 07-23-2010
Command Output Question
Hi everyone--

I'm new to these forums and shell scripting, and I'm trying to write a script that checks if a particular ip is pingable

My idea was to check if the output of the command
Code:
ping <some ip> -c 1 -w 1

had the string:
Code:
"1 packet transmitted, 1 received"

How would I go about doing this?

My current code looks as follows:

Quote:
for ((i = 1; i<=256; i++ ))
do
var="<the ip>"
var2=$(ping $var -c 1 -w 1)
text=" 1packets transmitted, 1 received"
done
I'm just not sure how to check the output of $var2
# 2  
Old 07-23-2010
Code is not tested. use to test all 10.1.1XXX IP address.

Code:
for ((i = 1; i<=255; i++ ))  
do
  var="10.1.1.$i"
  var2=$(ping $var -c 1 -w 1|grep " 1packets transmitted, 1 received")
  if [ $var2 == "" ] ; then
      echo "IP $var is not connected."
  else
      echo "IP $var is actived."
  fi
done

# 3  
Old 07-23-2010
Finding All Hosts On the LAN From Linux / Windows Workstation

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