drill:tldr:43430
The command "drill ${example-com}" is using the "drill" command-line tool to perform a DNS (Domain Name System) lookup for the domain ${example-com}.
The "drill" command is commonly found on Linux and Unix-like systems and is used to query DNS information. It provides more advanced features compared to the traditional "nslookup" command.
In the given command, the domain "${example-com}" is enclosed in curly braces and the preceding dollar sign suggests that it is a placeholder or a variable. The actual value for "${example-com}" needs to be provided before executing the command.
For example, if you replace "${example-com}" with "google.com", the command will look like: "drill google.com". This will send a DNS query to resolve the IP address associated with the domain "google.com" and provide various DNS-related information like authoritative name servers, resource records, etc., in the command output.