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cpupower:tldr:a353d
This command is using the "cpupower" command with superuser privileges (sudo) to obtain frequency information for a specific CPU core.
Here, "cpupower" is a utility in Linux that allows you to control and monitor CPU power-related settings. The "--cpu ${4}" option is specifying the CPU core for which frequency information is needed, where ${4} refers to the fourth command-line argument passed to the script or command. For example, if the fourth argument is "2", it will display frequency information for CPU core 2.
The "frequency-info" subcommand provides details about CPU frequency. The "--hwfreq" option includes hardware-provided frequency information (if available), and the "--human" option formats the output in a more readable and user-friendly way, making it easier for humans to understand the frequency data.