Send ip to my mail

#!/bin/bash
# mutt should be configured
# to send email using mstmp and gmail

myip_file=/tmp/myip.txt

getip()
{
    curl ifconfig.me/ip
}

mailme()
{
    echo "$*" | mutt -s "Desk ip" danielhilst@gmail.com
}

##

oldip=$(cat $myip_file)
newip=$(getip)

if test "$oldip" != "$newip"; then
    echo $newip > $myip_file
    mailme $newip
fi