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Shell script to ping multiple servers

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# 8  
Old 03-17-2017
I don't see any Invalid operation mode f in the output above...
# 9  
Old 03-18-2017
If I remove set -x I got this:
Code:
 ./netcheck.sh
Saturday, March 18, 2017 10:05:32 PM CAT
node 192.168.6.4 is up
node 192.168.6.41 is up
node 192.168.6.24 is up
node 192.168.6.11 is up
node 192.168.6.108 is up
node 192.168.6.26 is up
node 192.168.6.51 is up
node 192.168.6.8 is up
node 192.168.6.9 is up
Invalid operation mode f
node 192.168.6.25 is up
node 192.168.6.26 is up
node 192.168.6.71 is up
node 192.168.6.107 is up

# 10  
Old 03-18-2017
I think the error message is from your sendmail.
# 11  
Old 05-24-2017
RedHat
I would suggest the use of fping with the mask option, since you are not restricting yourself in ping.

This will ping all the ip in given network


Code:
fping -g 192.168.1.0/24

The response will be easy to parse in a script:

Code:
192.168.1.1 is alive
192.168.1.2 is alive
192.168.1.3 is alive
192.168.1.5 is alive
...
192.168.1.4 is unreachable
192.168.1.6 is unreachable
192.168.1.7 is unreachable
...

Note: Using the argument -a will restrict the output to reachable ip addresses, you may want to use it otherwise fping will also print unreachable addresses:

Code:
fping -a -g 192.168.1.0/24

Regards
Christian
System Admin
Cloud Hosted Virtual Desktop




Moderator's Comments:
Mod Comment Please use CODE tags as required by forum rules!
Last edited by ChristianC123; 05-26-2017 at 04:13 PM.. Reason: Added CODE tags.
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