The watch command

The watch command is a powerful utility in Linux that's used to execute a specified command repeatedly at defined intervals and display its output in the terminal. It is particularly useful for real-time monitoring and observing changes in system data over time. The command takes a command-line argument and refreshes the terminal screen at regular intervals to show the updated output of the given command. This continuous refresh provides a dynamic view of the data, making it easier for system administrators to track system metrics, analyze processes, or observe the behavior of certain commands. The watch command is valuable for monitoring tasks that require frequent updates, such as checking system resource usage, log file updates, or network activity. It streamlines the process of obtaining real-time information, allowing administrators to react promptly to any changes or anomalies, making it an essential tool in the Linux system administrator’s toolkit...