disable_ipv6.sh

#!/bin/sh

# ipv6-off.sh
# Disable IPv6 on all interfaces.

IFS=$'\n'
net=`networksetup -listallnetworkservices | grep -v asterisk`
for i in $net
do
networksetup -setv6off "$i"
echo "$i" IPv6 is Off
done

exit 0

Thanks for sharing this!

I was curious what the asterisk grep is doing so I ran the first part of the command and:

greggles@gregs-mbp ~/p/> networksetup -listallnetworkservices
An asterisk (*) denotes that a network service is disabled.
...

It seems like you could make the script more reliable and more readable by using something like:

net=`networksetup -listallnetworkservices | grep -v "denotes that a network service is disabled"`