what ppid

Author: vamei Source: http://www.cnblogs.com/vamei welcome reprint, please also keep this statement. Thank you! Linux processes have a certain relationship with each other. For example, in the Linux Process base, we can see that each process has a

Linux processes have a certain relationship with each other. For example, in the Linux Process base, we can see that each process has a parent process, and all processes take the INIT process as the root to form a tree structure. Here we will

AboutProgramRunning sequence We know that Linux is an environment where many people workTopWe also found that many programs are running at the same time, but most of them are in sleeping state. Think about it. If all programs are awakened at the

5 process primitives: execl (), execlp (), execle (), execv (), execvp (), execvp (), execve (), execlpexecleZookeeper Header files dependent on the 1.exe c family # Include Extern char ** environ; 2 function declaration // The first parameter is

Process usage summary and process usage Summary When a knowledge point is not used for a long time, it is easy to forget. This is a normal rule. So it is necessary for us to study at the time. This article will review and review previous learning

Record history to syslog and transmit it to the remote log collection server in real time. Method: use the new function bash4.1: Save History commands to syslog! Then, use syslog-ng to build a concentrated log server to collect host logs. 1.

Linux ps commands The ps command in Linux is short for Process Status. The ps command is used to list the processes currently running in the system. The ps command lists the snapshots of the current processes, that is, those processes that run the

---restore content starts---A process is a process that a program executes at a time and is the basic unit of dynamic execution of the operating system.The concept of the process is mainly two points: first, the process is an entity. Each process

1. Basics: The concept of Linux namespaceThe Linux kernel has introduced the concept of namespace from version 2.4.19 onwards. The goal is to have a particular global system resource (Resource) through an abstract approach so that processes in

In the work, the main process created a child process, and the child process has created the grandson process, but the child process was inexplicably killed, the result of the main process started a child process, the child process and try to create

1. Process DefinitionProcess is the core and foundation of operating system theory, and many concepts in operating system are related to process. the definition of the process ,The process has a variety of definitions, and now lists some of the

Vamei Source: Http://www.cnblogs.com/vamei Welcome reprint, Please also keep this statement. Thank you!The Linux process has a certain relationship with each other. For example, on the basis of the Linux process, we see that each process has a

I. Introduction of SELinuxSELinux (Secure enhanced Linux) security-enhanced Linux is a new Linux security policy mechanism developed by NSA for computer infrastructure security. SELinux allows system administrators to be more flexible in defining

Small knowledge (take PS as an example): View command path which PScommand to help PS--helpCommand Complete manual: Man PS Description The PS full name is the process status (process state), and he is the one who provides information about the

In this chapter, people indefinitely the feeling, mainly do not know how to use the actual. Learning from the previous chapters, each process has a parent process, and when the child process terminates, the parent process is notified and gets the

A process is a copy of a program running, a life cycle exists, the CPU runs on a per-process basis by time, and a process that is not yet closed is saved in a fixed format in memory storage (task struct), and a list of task structs consisting of

ProcessWe usually write the C language code, compiled by the compiler, eventually it will become an executable program, when the executable program (before the end), it becomes a process.A program is an executable file that is stored on a storage

The PS command in Linux is the abbreviation for Process Status . The PS command is used to list those processes that are currently running on the system. The PS command lists the current snapshots of those processes, which are those that are

System based onubuntu server 14.04.4 amd64 Install the first step download and unzip the Nginx compressed packageDownload Nginx from Nginx website, or perform wget http://nginx.org/download/nginx-1.10.1.tar.gz direct download on LinuxUnzip the

This series of articles will cover the knowledge of Docker:(1) Docker Installation and basic usage(2) Docker image(3) Isolation of Docker containers-environmental isolation using namespace(4) Isolation of Docker containers-resource isolation using