Type the command, with no options, that lists the devices currently attached to the system's USB buses.
LPIC-1 Exam 101-500, objective 101. System architecture easy
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It is kept out of search results and out of mock exams until they have. Read the source below before you take the answer as settled.
Answer
Type the answer.
Accepted answers
lsusb/usr/bin/lsusb
Case sensitive — Linux is, and grading LS as ls would teach a falsehood.
Why
lsusb prints one line per device with its bus and device number and its vendor:product ID. lsusb -t draws the bus topology as a tree, and lsusb -v prints the full descriptors. The PCI equivalent is lspci. Both read the information the kernel exposes under /sys and translate the numeric IDs into names using a local ID database.
Where this comes from
- Cited
- manual page lsusb(8)
Practise this
Reading one question is not practice. The trainer will draw a set from objective 101 and space the ones you get wrong.