Implement 'multithreading 'in shell'

That is, for example, I have 100 executable files, and there is no particular sequential execution relationship between them, such as CODE: job_1job_2job_2 ..... job_100 wants to use csh/bash to call and execute multiple threads at a time. For example, if five threads are opened at a time, job_1, 2, 3, 4, 5 start first. If any of the threads is completed first, continue to execute the next file that has not been initially executed, such as job_6, 7, 8 ...., in this way, all 100 files are executed at the specified number of threads. I originally wanted to use & quot

That is, for example, I have 100 executable files and there is no particular sequential execution relationship between them, as shown in figure

CODE:

job_1
job_2
job_2
.....
job_100Want to use csh/bash for multi-thread invocation and execution
For example, if five threads are opened at a time, job_1, 2, 3, 4, and 5 are started first. If any of the threads is executed first, the next file that has not been initially executed will be executed, such as job_6, 7, 8 ...., in this way, all 100 files are executed at the specified number of threads.
I originally wanted to use "&" to put it in the background, but I can specify 5 at a time to put it in the background, but I cannot know when any of the programs will be executed, so we cannot continue to execute the next program!

Perfect solution

-(dearvoid@LinuxEden:Forum)-(~/tmp)-[$$=6718 $?=0] ; cat job_1#!/bin/bashn=$((RANDOM % 5 + 1))echo "$0 sleeping for $n seconds ..."sleep $necho "$0 exiting ..."-(dearvoid@LinuxEden:Forum)-(~/tmp)-[$$=6718 $?=0] ; for ((i = 2; i <= 10; ++i)); do cp job_1 job_$i; done-(dearvoid@LinuxEden:Forum)-(~/tmp)-[$$=6718 $?=0] ; cat jobs.sh#!/bin/bashnParellel=5nJobs=10sJobPattern='./job_%d'aJobs=()sNextJob=for ((iNextJob = 1; iNextJob <= nJobs; )); do    for ((iJob = 0; iJob < nParellel; ++iJob)); do        if [ $iNextJob -gt $nJobs ]; then            break;        fi        if [ ! "${aJobs[iJob]}" ] || ! kill -0 ${aJobs[iJob]} 2> /dev/null; then            printf -v sNextJob "$sJobPattern" $((iNextJob++))            echo "$sNextJob starting ..."            $sNextJob &            aJobs[iJob]=$!        fi    done    sleep .1donewait-(dearvoid@LinuxEden:Forum)-(~/tmp)-[$$=6718 $?=0] ; ./jobs.sh./job_1 starting ..../job_1 sleeping for 3 seconds ..../job_2 starting ..../job_2 sleeping for 2 seconds ..../job_3 starting ..../job_3 sleeping for 5 seconds ..../job_4 starting ..../job_5 starting ..../job_4 sleeping for 4 seconds ..../job_5 sleeping for 2 seconds ..../job_2 exiting ..../job_6 starting ..../job_6 sleeping for 2 seconds ..../job_5 exiting ..../job_7 starting ..../job_7 sleeping for 1 seconds ..../job_1 exiting ..../job_8 starting ..../job_8 sleeping for 3 seconds ..../job_7 exiting ..../job_9 starting ..../job_9 sleeping for 5 seconds ..../job_4 exiting ..../job_6 exiting ..../job_10 starting ..../job_10 sleeping for 5 seconds ..../job_3 exiting ..../job_8 exiting ..../job_9 exiting ..../job_10 exiting ...-(dearvoid@LinuxEden:Forum)-(~/tmp)-[$$=6718 $?=0] ; bye