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文件或目录权限chmod-菜鸟的成长之路-51CTO博客
source link: http://blog.51cto.com/12777709/2067558
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Linux用户分为：拥有者、组群(Group)、其他（other）例：rwx r-- r--r=读取属性 //值＝4w=写入属性 //值＝2x=执行属性 //值＝1-rw-r--r--.这种权限就是644所属主可读可写，所属组可读，其他用户可读chmod-R批量修改目录，和目录下所有的子文件的权限零时关闭selinuxsetenforce0如果想关闭selinux需要编辑配置文件vim/et
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