Bash script to get all IP addresses

Question

I am trying to write a bash script to get all IP addresses on a server. The script should work on all major distros. Here is what I have:

ifconf         


        

Answer 1

ifconfig was obsoleted by ip. It also has the flag -o that write outputs easy to parse. Use ip -4 to show only IPV4 addresses. Note the simpler script, it already exclude the loopback address:

ip -o addr | awk '!/^[0-9]*: ?lo|link\/ether/ {print $2" "$4}'

Or if you don't want the networks:

ip -o addr | awk '!/^[0-9]*: ?lo|link\/ether/ {gsub("/", " "); print $2" "$4}'