Linux file type and vice file name
Always emphasize a concept, that is: Any device under Linux are files, not only that, even the interface of data communication has a proprietary file in charge ~ So, you will? solution, Linux file type is really a
User and user groups
Linux is a multi-user, multi-tasking operating system, in order for each user to have more confidential file data, so not see the rights management is more important. Linux file ownership and access authorization are
Linux File Permissions ConceptsWhen your screen appears "Permission deny", do not worry, "must be a permission set error"! (The following excerpt from the bird Brother's Linux private dishes sixth chapter, Linux file permissions and directory
Five big permissions:Ugo Permissions、SetUID SetGID Sticky、ACL Permissions、chattr(Permissions at the file system level),SELINUX ====================== file attributes and Ugo permissions ==================================ls-l list The properties of a
1. Basic permissions and permissions management for users1. First of all, we want to manage user rights, we need to know how to view the permissions of a file, we can use the LL command or LS-L command to view the permissions of a file, such as:We
One, Linux file system three kinds of identities
1), file owner2), the same group of usersusers of the same user group can access the user group's files;Each account can be added to multiple user groups.Files in the same user group can also be set
1. File Permissions2. File and directory rwx permission description
File rwx permissions:
R: Readable, with permission to read the contents of the file (), if no R,vi/vim editor prompts cannot be edited (can be forced to edit), echo
default permissions and hidden permissions for files and directoriesA file has several attributes, including basic permissions such as read-write Run (R, W, X), and whether it is a directory (d) with a file (-) or a link file (l), and so on! The
Through the previous two blog we introduced the Linux system user management, Linux users and user group management of the relevant configuration file to explain the user management of the relevant configuration files, including user information
We already know the importance of file permissions to system security and the relationship between file permissions and users and user groups. How can we modify file permissions? How many file permissions can we modify? In fact, a file has a lot of
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.