Linux analog multi-threaded copy

#!/bin/SH#日志文件log_file=/data/Threadcp.loga=$(Date+%h%m%S)Echo-E"starttime:\t$a"#最大线程数nParellel=4#获取需拷贝文件数组cd/data/testsrcfilelist=() J=0 for file inch$(ls*) DoFilelist[j]=$file Let"J + +"     Done#获取拷贝文件数filenum=$(ls|WC-W) Ajobs=() for((Nextjob =0; Nextjob < FileNum; )); Do     for((IJob =0; IJob < Nparellel; ++ijob)); Do        if[$nextJob-eq $filenum]; ThenBreak ; fi        if[ !"${ajobs[ijob]}"] || !Kill-0${ajobs[ijob]}2>/dev/NULL; Then            {                CP${filelist[nextjob]}/data/EXTDEcho "[$ (Date"+%f%T")]: ${filelist[nextjob]}">>$log _file#Echo "[$ (Date"+%f%T")]: ${nextjob}">>$log _file}& Let"nextjob++"Ajobs[ijob]=$!fi     Done    Sleep.1 Donewaitb=$(Date+%h%m%S)Echo-E"endtime:\t$b"

Linux analog multi-threaded copy