ipchecker.bash - A Bash script to automatically check malicious IP addresses

I decided to open-source ipchecker.bash, a Bash script I created a while ago, intended for automating the research for malicious IP addresses. 

The script was created for OS X El Capitan and later.

I also developed a Linux version, called ipchecker_linux.bash, included in this package.

In order to use ipchecker.bash, you'll be prompted for an IP address to check.

The script will validate the IP address entered by using regular expressions and it will perform a recon on the entered IP only if it's a valid public IP address.

If so, the script will perform a recon on the IP by populating a list of specialized websites with the IP address entered by the user

Invalid IP addresses and private IP addresses will generate an error and no recon will be performed.

Hope you'll enjoy it and it can help you being more efficient in your pentests/monitoring activity.

I'm not a great coder, but I'll try to re-write this in Python so it can be more easily ported on multiple platforms.

Source code (Github)