Bash脚本之多线程处理

前言

在bash中并没有线程的概念，我们可以用多进程来模拟多线程的操作来达到同样的效果

示例代码

#!/bin/bash

# thread number can modify if needed
THREAD=10
ROOTDIR="$(pwd)"
TMP_FIFO="/tmp/$.fifo"

#cannot del here. this is thread control
mkfifo "${TMP_FIFO}"
exec 6<>"${TMP_FIFO}"
rm ${TMP_FIFO}

needToDo(){
#do something her you need mutithread do
}

#cannot del here. this is thread control
for ((i=0;i<${THREAD};i++));
do
    echo
done >&6

while ((1)) #some control 
do
    read -u6
    {
        needToDo
        echo >&6
    }&
done 


wait
exec 6>&-
exit 0