How to implement "Multithreading" execution script File in Shell

This article introduces the knowledge of "how to implement multi-threaded script files in Shell". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

That is, for example, I have 100 executable files that have no special sequential execution relationship with each other, such as CODE:

The code is as follows:

Job_1

Job_2

Job_2

.

Job_100

Want to use csh/bash for multithreaded call execution.

For example, if you open five threads at a time, then job_1,2,3,4,5 starts first, and if any of these threads executes completion first, it continues to execute the next file that has not been executed at the beginning, such as job_6,7,8...., which always executes all 100files with the specified number of threads.

I wanted to use "&" to put it in the background, but in this way I can specify 5 at a time, but I can't know when any of these programs will be finished, so I can't move on to the next program.

The perfect solution:

The code is as follows:

-(dearvoid@LinuxEden:Forum)-(~ / tmp)-

[$$= 6718 $? = 0]; cat job_1

#! / bin/bash

((RANDOM% 5 + 1))

Echo "$0 sleeping for $n seconds..."

Sleep $n

Echo "$0 exiting..."

-(dearvoid@LinuxEden:Forum)-(~ / tmp)-

[$$= 6718 $? = 0]; for ((I = 2; I