Let's perform the following steps:

1. First, we clone the Git repository using the following command:

git clone https://github.com/digininja/pipal.git

Once we run the preceding command, we get the following output:

2. Now we move into the pipal directory and give execute permission to the pipal.rb file using the following command:

chmod +x pipal.rb

3. We can now run the tool using the following command:

./pipal.rb

Once we run the preceding command, we get the following output:

4. Let's now give the tool a password list to analyze. In our case, we use the infamous rockyou.txt password file, as shown in the following screenshot:

Once the analysis is complete, the tool will show different information about the file such as top patterns and top base keywords, as shown in the following screenshot:

5. Scrolling further down we can see that it has also shown the count of passwords using lowercase letters, numbers, and the number of digits in the password:

This tool is very useful as, once we know the patterns, we can generate a more accurate wordlist based on the analysis to be used to perform brute force attacks during a red team activity and so on.