dig:tldr:eee19

The command "dig +short ${example-com}" is used to perform a DNS (Domain Name System) lookup for the specific domain "example.com" and display a shortened output.

Let's break down the command:

• "dig" is a command-line tool used to query DNS servers and obtain information about domain names.
• "+short" is an option that instructs "dig" to only output the most essential information. It removes any additional details, such as the record type, TTL (Time to Live), and other information.
• "${example-com}" is a placeholder for the domain name you want to query. In this case, it is "example.com". The "${}" syntax suggests that it is likely used within a scripting or command-line environment, where the actual value of the variable is substituted at runtime.

So, when you run this command, it will query the DNS system for the IP address associated with the domain "example.com" and display only the IP address in a concise format.