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Three types of codes for automatic refresh of web pages

When you make a web page, do you sometimes want your web page to automatically refresh continuously, or automatically jump to another page you set after a period of time?

Dec 17, 2016 pm 03:39 PM

Dynamically set environment variables of the Linux system through java code

This article introduces: Dynamically setting environment variables of the Linux system through java code

Dec 17, 2016 pm 01:41 PM

environment variables

Install JDK and configure environment variables on Linux

This article introduces: Installing JDK and configuring environment variables on Linux

Dec 17, 2016 pm 01:39 PM

Complete steps for setting java environment variables under Linux

This article introduces: Complete steps for setting java environment variables under Linux

Dec 17, 2016 pm 01:36 PM

java environment variables

Configuring Java environment variables under Linux

Generally speaking, we will install Java in the /usr/local directory or /opt directory. It is assumed here that the java installation package has been decompressed under /opt, and the specific directory is: /opt/java8/java1.8.0_45 directory (note: if it is a production environment, the root user must be installed and configured).

Dec 17, 2016 pm 01:35 PM

java environment variables

How to set and view environment variables in Linux

Viewing and setting environment variables is very common during use of Linux. This article has compiled some commonly used commands related to environment variables. Friends who are interested can refer to it. I hope it will be helpful to you.

Dec 17, 2016 pm 01:30 PM

linux environment variables

Checking and solving Linux zombie processes

This article introduces: Checking and solving Linux zombie processes

Dec 17, 2016 am 11:57 AM

Dealing with zombie processes under Linux

A zombie process means that its parent process has exited (the parent process did not wait (call wait/waitpid) for it), and if no process accepts the process after it dies, it becomes a zombie process, that is, a (zombie) process.

Dec 17, 2016 am 11:54 AM

How to view processes and kill zombie processes in Linux system

This article mainly introduces the method of viewing processes and killing zombie processes in the Linux system. It is the basic knowledge for introductory learning of Linux. Friends who need it can refer to it.

Dec 17, 2016 am 11:52 AM

Linux finds zombie processes (zombie processes)

This article introduces: Linux finds zombie processes (zombie processes)

Dec 17, 2016 am 11:42 AM

What causes Linux zombie processes and how to avoid them

The purpose of setting the zombie state for a process is to maintain the information of the child process so that the parent process can obtain it at a later time. This information includes the child process's process ID, termination status, and resource utilization information (CPU time, memory usage, etc.). If a process terminates and has child processes in the zombie state, the parent process IDs of all its zombie child processes will be reset to 1 (init process). The init process that inherits these child processes will clean them up (the init process will wait for them, thereby removing the zombie state).

Dec 17, 2016 am 11:39 AM

Linux systems find and kill zombie processes

On a Linux server, there will be some zombie processes. Here is how to quickly find and eliminate these zombie processes. First, we can use the top command to check whether there are currently zombie processes on the server. You can see the number of zombie processes in the figure below. , if the number is greater than 0, it means that there are currently zombie processes on the server

Dec 17, 2016 am 11:29 AM