user/ping_offline.sh

   1 #!/bin/bash
   2 # Desc:Marks the time when a remote server can be pinged.
   3 # Depends: GNU Coreutils 8.32 (date, sleep), iputils-ping 3:20211215-1 (ping)
   4 # Version: 0.0.1
   5
   6 delay=10;
   7 domain="google.com"
   8
   9 if [[ -n "$1" ]]; then domain="$1"; fi;
  10
  11 printf "%s:STATUS:Starting ping...\n" "$(date -Is)";
  12 while ! ping -c1 "$domain"; do
  13     sleep "$delay";
  14 done;
  15 printf "%s:Ping resolved.\n" "$(date -Is)";
  16 exit 0;