A group was created as `devs` and must now be called `developers`, keeping its existing GID and every member. Type the complete command that renames it (assume you are already root).
LPIC-1 Exam 102-500, objective 107. Administrative tasks medium
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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.
Answer
Type the answer.
Accepted answers
groupmod -n developers devsgroupmod --new-name developers devsgroupmod --new-name=developers devsgroupmod -n developers -- devs
Case sensitive — Linux is, and grading LS as ls would teach a falsehood.
Why
groupmod -n takes the new name first and the existing group name last, which is the reverse of the order most people expect. Because permissions on files are recorded as a numeric GID rather than a name, renaming a group leaves every file's ownership correct and every member in place; only the name in the first field of /etc/group and /etc/gshadow changes. Changing the GID instead, with groupmod -g, does the opposite: it leaves existing files pointing at the old number.
Where this comes from
- Cited
- manual page groupmod(8)
Practise this
Reading one question is not practice. The trainer will draw a short set from objective 107 and space the ones you get wrong.
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