A vendor's driver package requires you to report the exact kernel release the machine is running, and nothing else. Which command prints only that?
LPIC-1 Exam 101-500, objective 103. GNU and Unix commands easy
Machine-checked — no person has signed for it. This question was read against the source cited below by an automated pass, which found no contradiction. That is a weaker claim than it sounds: the same kind of process wrote the question, so it can confirm its own mistake.
Treat it as a good draft rather than as settled fact, and read the source below before you rely on it. It is not used in mock exams here — only questions a person has signed for are.
How these questions are written — where each question comes from, what the verification ledger records, and what happens when one is found wrong.
The options
Correct uname -r
Correct. -r prints the kernel release, for example 5.15.0-91-generic. It is the string that matches the directory under /lib/modules holding that kernel's modules.
Not correct uname -s
Wrong. -s prints the kernel NAME, which on any Linux system is the constant string Linux. It is also what uname prints when given no option at all.
Not correct uname -v
Wrong. -v prints the kernel VERSION string, which is the build identifier and date, not the release number the module tree is keyed on.
Not correct uname -m
Wrong. -m prints the machine hardware name, such as x86_64 or aarch64.
Why
uname reads the fields the kernel reports through the uname system call and prints the ones you select: -s kernel name, -n network node name, -r release, -v version, -m machine, -o operating system. -a prints them all in a fixed order. Only -r gives the release on its own, which is why scripts write /lib/modules/$(uname -r).
Where this comes from
- Cited
- manual page uname(1)
Practise this
Reading one question is not practice. The trainer will draw a short set from objective 103 and space the ones you get wrong.
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