1.添加项目组
2.添加获得project支持的用户
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| #useradd -G project alex
#useradd -G project arod
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3.创建目录
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#mkdir /srv/ahome
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4.把目录的用户组改为project
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#chgrp project /srv/ahome
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5.更改目录的权限,是project用户组可以rwx,其他人没有任何权限
6.切换到alex,并在/srv/ahome下创建一个文件,查看文件的权限
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#su – alex
$touch abcd
$ll
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