CODEWITHSUNDEEP
linuxbashshell
SSF
SSF

Reputation: 983

1 second delay after ping command

I am new to linux scripting so apologies if this is a trivial question. I have written the following script. The script basically pings the ip addresses in 192.168.11.0 once and prints if the response has been successful or not.

#!/bin/bash

NETWORK=192.168.11
IP_START=101
IP_END=148

IP_COUNTER=$IP_START

while [[ $IP_COUNTER -le $IP_END ]]
   do
       ip=$NETWORK.$IP_COUNTER
       ping -c1 $ip &>/dev/null && echo "$ip is UP" || echo "$ip is DOWN"
       IP_COUNTER=$(($IP_COUNTER +1))
   done

However I would like to have a 1-second delay between the ping and the "echo "$ip is UP"..." part. I am not sure how to do this. I would really appreciate it if someone could guide me in the right direction.

Upvotes: 0

Views: 4037

Answers (1)

Mike S.
Mike S.

Reputation: 2111

Use sleep.

if ping -c1 $ip &>/dev/null ; then sleep 1 echo $ip is up else sleep 1 echo $ip is down fi

As I look at your code, maybe better matching your coding style will be

ping -c1 $ip &>/dev/null && sleep 1 && echo "$ip is up" || sleep 1 && echo "$ip is down"

"True" posix sleep will accept only integral values (sleep 1, sleep 2), but linux version of sleep can also handle non-integral (sleep 0.25 for 1/4 of second).

Upvotes: 2

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