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2025-09-23 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >
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This article mainly explains "how to use the grpck command of Linux". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn how to use Linux's grpck command.
The Linux common command grpck command is used to verify the integrity of group files. You need to lock (lock) the group files / etc/group and / etc/shadow before verifying.
Syntax grpck (option) option-r: read-only mode;-s: sort group id. Example # echo check_user:x: > > / etc/group # add a line of malformed data # cat / etc/group | grep check_user check_user:x: # where the GID field is empty, which is an error. # grpck / etc/group invalid group file entry delete line 'check_user:x:'? Y # prompts whether to delete grpck: the files have been updated # has already deleted the wrong line, indicating that the file has been updated. # cat / etc/group | grep check_user # was not found and has been deleted. At this point, I believe you have a deeper understanding of "how to use the grpck command of Linux". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!
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