What type of information is provided in the output of the 'free' command?

The 'free' command is specifically designed to provide information about system memory usage. It outputs crucial data regarding total, used, free, shared, buffer, and cache memory, as well as swap memory. This means that when you run the 'free' command, you receive a detailed view of how much RAM is being utilized and how much is available, which is vital for assessing system performance and resource allocation.

Understanding memory availability is essential for system administrators and users alike, as it helps in troubleshooting memory-related issues, optimizing applications, and ensuring that the system runs efficiently. The clarity and structure of the 'free' command output make it a straightforward tool for monitoring and analyzing memory resources on a Linux system.