shell多线程写法

网上很多类似的文章, 这里做下笔记而已

#!/bin/shfunction a_sub {    return}

starttime=$(date +%s)export starttimetmp_fifofile="/tmp/$$.fifo"echo $tmp_fifofilemkfifo $tmp_fifofileexec 6<>$tmp_fifofilerm $tmp_fifofile

thread=3for ((i=0;i<$thread;i++));do    echodone >&6

for ((i=0;i<10;i++));do    read -u6    {         a_sub

         echo >&6    } &donewaitexec 6>&-

exit 0