nmap:tldr:1d639
The command nmap is a network scanning tool used to discover hosts and services on a network.
The --script option is used to specify NSE (Nmap Scripting Engine) scripts to execute during the scanning process. NSE scripts automate a variety of tasks, including vulnerability detection, service enumeration, and more.
In this specific command, the --script option is set to "default and safe". This means that Nmap will only execute scripts that are flagged as default and safe, reducing the possibility of causing any unintended disruptions or side effects during the scanning process.
${address_or_addresses} refers to the target(s) to scan. It can be a single IP address, a hostname, an IP address range, or even a list of multiple targets separated by commas.
To summarize, this command performs a network scan using Nmap, executing only default and safe scripts, and targeting the specified ${address_or_addresses}.