The free command is a Linux utility that displays information about the system's memory usage. It provides details on total, used, free, shared, buffer/cache, and available memory. The command can be used with various options to customize the output, such as:
-h: Display memory in a human-readable format (e.g., GiB, MiB).-s <seconds>: Continuously monitor memory usage at specified intervals.-c <count>: Limit the number of updates when using the-soption.
For example, running free -h will show a summary of memory usage in a format that's easy to read.
