Learn the Linux Command - lsmod

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lsmod is a Linux command that shows information about all loaded modules.

The format is name, size, use count, list of referring modules. The information displayed is identical to that available from /proc/modules.

If the module controls its own unloading via a can_unload routine then the user count displayed by lsmod is always -1, irrespective of the real use count. 

Options for Ismod

-h--help

Display a summary of options and immediately exit.

-V--version

Display the version of lsmod and immediately exit.