How to ping in BASH?

Question

bash

Good afternoon. How to make a network ping script in such a way that conditionally assign to a variable a connection break if it lasts more than 1 minute and connection restoration if there was a break before? Thanks

Answer 1

Ping with one-time pings and check the return code in the $? variable: 0 success, not 0 - communication error.

ping mysite.com -c 1
echo $?

After discussion in the comments, here is a more useful script:

declare -i failcount=0
status="OK"

while true: do
    if ping mysite.com -c 1; then
        if [ "$status" == "FAIL" ]; then
            echo "Network is restored"
            curl -X GET -k "https://api.telegram.org/bot1938&text=Connection_is_restored"; 
            status="OK"
        fi
        failcount=0
    else
        failcount+=1
        if [ "$status" == "OK" ] && [ $failcount -gt 60 ] ; then
            echo "Network is unavailable for 60 seconds!!!"
            curl -X GET -k "https://api.telegram.org/bot1938&text=Connection_broken_for_60_seconds"; 
            status="FAIL"
        fi
    fi
done

Answer 2

You need to go to google, drive in the request "bash if ping successful", find the one you need and adapt it to your liking.