Get Public IP from Linux command

Just copy paste following command and hit enter:-

wget -q -O - checkip.dyndns.org|sed -e 's/.*Current IP Address: //' -e 's/<.*$//'

Result:-

harith@cengkeh:~$ wget -q -O - checkip.dyndns.org|sed -e 's/.*Current IP Address: //' -e 's/<.*$//'
124.13.233.xxx
harith@cengkeh:~$

Other option is using curl :-

curl -s checkip.dyndns.org|sed -e 's/.*Current IP Address: //' -e 's/<.*$//'

if you dont have curl, download by using following command:-

sudo apt-get install curl