Using script to save dynamic network ip address to file?

Question

Is there a way I could use AppleScript to check for my network ip address? Or an alternative coding option? I need to save the ip address to a file if it has changed and then upload it to my ftp server with a date and time stamp. I have this part figured out its just checking for the address.

Answer 1

ifconfig.me just returns a plain text public IP:

do shell script "curl ifconfig.me > ip.txt"

Answer 2

Try:

set filePath to POSIX path of ((path to desktop as text) & "myIp.txt")
set myIp to do shell script "curl checkip.dyndns.org | grep -Eo [0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+ > " & quoted form of filePath