effective user id

actual User id:Some articles refer to it as the real user ID, which is the ID when we log on to the UNIX system. Valid User ID: Defines the rights of the operator. A valid user ID is a property of a process that determines the access to the file

Actual User ID, valid user ID, and save setting user IDrealuserID: the actual user ID, which refers to the worker tiveuserid of the process executor: valid user ID, savedset-user-ID: save the set user ID as the inclutiveuser... actual user ID, valid

Actual user ID, valid user ID, and save Set user ID real user ID: the actual user ID, which is the valid user ID of the process executor, saved set-user-ID: Save the set user ID as a copy of the valid user ID, you can restore the original effectiv

Several Common Unix concepts are explained below. First, we need to clarify that these concepts are related to processes.Real user ID indicates who actually executes the process. valid userid is mainly used to verify the File Access Permissions

Real User id: Actual username, refers to who the process performer is Effective User ID: Valid user ID, which is the access to the file when the process executes Saved Set-user-id: Save the Set User ID as a copy of the effective user ID, which

UNIX environment Advanced Programming 8.11 mentioned in the user's actual ID, valid user ID, save the user ID set the concept of the time, I stuck, the internet to find a post, to do a detailed description. Collection of. 7.6 The USER ID of A

Recently, when I was watching apue, I saw 3.14 knots and fcntl.#include int fcntl (int fd, int cmd, .../* int arg */);Error returns-1, the specific return value depends on the cmd parameter.It refers to a cmd,fd_getfd fd_setfd returned by the file

Original: UWP apps get all kinds of systems, user information (2)-Store authorization information, retail demo mode information, ad ID, EAS device information, hardware identification information, mobile network informationIn application development,

In fact, this is not only happening in the community-type site, in all the Web site forums exist this now. I have noticed a forum before the user statistics, the number of registered more than 40,000, but the actual post users only 10,000, the ratio

In Linux, each file has its own users and groups of users, by default the creator of the file, or by Chown and chgrp, to modify the users and user groups to which the file belongs. The properties of the file are stored in the attribute structure