I need a bash (or a plain shell) script to put in a cron job that every minute checks if the internet is up.
This is how I did it:
#! /bin/sh
host1=google.com
host2=wikipedia.org
curr_date=`date +"%Y%m%d%H%M"`
echo -n "${curr_date};"
((ping -w5 -c3 $host1 || ping -w5 -c3 $host2) > /dev/null 2>&1) && echo "up" || (echo "down" && exit 1)
How would you do it? Which hosts would you ping?
Thanks in advance.
EDIT:
By "internet is up" I mean my internet connection.
By "up" I mean to have usable connection (doesn't really matter if we are talking about the DNS being down or the connection is really really slow [mind the -w for timeout]). That is also why I didn't include any ip only hosts.
should I also ping stackoverflow? I mean, if I can't access google wikipedia or stackoverflow I don't want internet :p