Monitoring memory usage is a critical aspect of system administration in Linux environments. It helps identify potential performance issues, memory leaks, and resource bottlenecks. There are several commands and tools available in Linux to check memory usage, providing detailed information about the system’s memory utilization.
One of the most commonly used commands is free, which provides a snapshot of the system’s memory usage. It displays information about total memory, used memory, free memory, and buffers and caches. Another useful tool is top, which provides a dynamic view of the system’s processes and their memory consumption. It allows you to monitor memory usage in real-time and identify processes that are consuming excessive resources.