A file created by a user (Andy) under Linux allows a specific user (Alice) to modify

Add User group Ateam

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Create a directory under root user/home/ateam-text

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Add Andy Alice Tom user

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Add Andy Alice users to the Ateam group as a supplemental group

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Change the owning group of the directory/home/ateam-text to Ateam

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Change group permissions for directory/home/ateam-text

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At this point Andy Alice user has read and write permission under directory/home/ateam-text and Tom user does not have read and write permission

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But for Andy Alice, each subdirectory created under directory/home/ateam-text does not have read and write permissions

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Because the owner of the subdirectory created and all groups have no read and write permissions for the user

Special permissions are needed to "inherit" the newly created file permissions

Make the newly created file under directory/home/ateam-text the same as the group for that directory (inherit the group permissions of directory/home/ateam-text)

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At this point the newly created subdirectory belongs to the group Ateam

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Now Alice user can modify all the files that Andy creates later

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This article is from the Linux Learning Notes blog, so be sure to keep this source http://10516823.blog.51cto.com/10506823/1715203

A file created by a user (Andy) under Linux allows a specific user (Alice) to modify