zoukankan      html  css  js  c++  java
  • 【转】How to Change File Ownership & Groups in Linux

    有关linux下 文件权限的问题,一直不是很清楚。(参考菜鸟教程: http://www.runoob.com/linux/linux-file-attr-permission.html)

    像上面这样,default 这个链接文件的权限 rwx rwx rwx 即该文件的所有者的权限rwx(4-2-1),所有者所在的组的权限rwx, 其它用户(该组之外的所有用户)的权限rwx.

    Linux文件属主和属组

    对于文件来说,它都有一个特定的所有者,也就是对该文件具有所有权的用户。

    同时,在Linux系统中,用户是按组分类的,一个用户属于一个或多个组

    文件所有者以外的用户又可以分为文件所有者同组用户其他用户

    因此,Linux系统按文件所有者、文件所有者同组用户和其他用户来规定了不同的文件访问权限。

    在以上实例中,bin文件是一个目录文件,属主和属组都为root,属主有可读、可写、可执行的权限;与属主同组的其他用户有可读和可执行的权限;其他用户也有可读和可执行的权限。

    -----------------------------------------------------------------------------------

    原文:http://www.hostingadvice.com/how-to/change-file-ownershipgroups-linux/

    File ownership and groups for files are fundamental to the Linux operating system. Every file in Linux is managed by a specific user and a specific group.

    Figure Out Who Owns the File, Then Use Either chown or chgrp

     

    Display ownership and group information using the following command:

    This file is owned by the root user and belongs to the www-data group.

    Changing the Ownership of a File Using chown

    You can change the ownership of a specific file using the chown command. For security purposes only, the root user or members of the sudo group may transfer ownership of a file.

    To change the ownership of a file:

    The file file.txt is now owned by Robert. By default, chown follows symbolic links and changes the owner of the file pointed to by the symbolic link. If you wish to change ownership of all files inside a directory, you can use the -R option.

    Changing the Group Ownership of a File Using chgrp

    All users on the system belong to at least one group. You can find out which groups you belong to using the following command:

    You can then change the group ownership of a specific file using the chgrp command:

    The file file.txt now belongs to the webdev group.

    Changing Both the Owner and the Group Using chown

    You can change both the owner and group of a file using just the chown command.

    The file file.txt is now owned by Tito and belongs to the editors group.

  • 相关阅读:
    left join 多表关联查询
    Dictionary解析json,里面的数组放进list,并绑定到DataGridView指定列
    C#同一位置切换显示两个Panel内容
    C#点击按钮用DataGridView动态增加行、删除行,增加按钮列
    C#获取本机mac地址
    C# MD5加密
    C# SQLiteDataReader获得数据库指定字段的值
    linux下mongodb安装、服务器、客户端、备份、账户命令
    ubuntu下创建python的虚拟环境
    python多进程之间的通信:消息队列Queue
  • 原文地址:https://www.cnblogs.com/oxspirt/p/6364002.html
Copyright © 2011-2022 走看看