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Linux in a Nutshell

This directory of Linux commands is from Linux in a Nutshell, 5th Edition.

Click on any of the 687 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Bookshelf.

Buy it now, or read it online on Safari Bookshelf.


lsusb [options]

System administration command. List all Universal Serial Bus (USB) devices. This command has many options of use for debugging device drivers. Here we document some of the more common options.



Show IRQ and addresses as seen by the cards instead of the kernel.

-D device

Only show information about the specified device. This should be given as a file in the /proc/bus/usb directory—e.g., /proc/bus/usb/001/001.


Print a tree showing connections between devices.

-v, -vv

List devices verbosely. Use the second form for very verbose listings.

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