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Editor to share with you how to achieve jar package startup and jar package background operation in Linux, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Linux runs the jar package command as follows:

Method 1:

Java-jar shareniu.jar

Features: the current ssh window is locked, you can press CTRL + C to interrupt the program, or close the window directly, and the program exits

So how to keep the window unlocked?

Mode two

Java-jar shareniu.jar &

& stands for running in the background.

Specific: the current ssh window is not locked, but the program stops running when the window closes.

Continue to improve, how to keep the program running when the window closes?

Mode 3

Nohup java-jar shareniu.jar &

Nohup means to run the command without hanging up. When the account exits or the terminal closes, the program is still running.

When a job is executed with the nohup command, all output from the job is redirected to the nohup.out file by default, unless another output file is specified.

Mode 4

Nohup java-jar shareniu.jar > temp.txt &

Explain to me > temp.txt

Command > out.file

Command > out.file redirects the output of command to the out.file file, that is, the output is not printed to the screen, but to the out.file file.

You can view background running tasks through the jobs command

Jobs

Then all jobs executed in the background are listed, and each job is preceded by a number.

If you want to transfer a job back to the front desk, all you need is a fg + number.

Fg 23

View the pid of threads occupied by a port

Netstat-nlp | grep: 9181

If you forget the process number, you can view the process number of the currently running jar package with the following command

Ps-ef | grep xxx.jar

Or ps-aux | grep java

/ / close the process

Kill-s 9 24204

24204 represents the process ID found in the previous step

These are all the contents of the article "how to start the jar package and run the jar package in the background in Linux". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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