与非阻塞读的bash脚本 [英] Bash script with non-blocking read

问题描述

欲一些数据发送到根进程与命名管道。下面是脚本，它的伟大工程：

I want to send some data to a root process with a named pipe. Here is the script and it works great:

#!/bin/sh
pipe=/tmp/ntp

if [[ ! -p $pipe ]]; then
    mknod -m 666 $pipe p
fi

while true
do
    if read line <$pipe; then
         /root/netman/extra/bin/ntpclient -s -h $line > $pipe 2>&1
    fi
done

我其实有像这样的几个脚本。我想附上所有的人都在一个脚本。问题是，在第一个读，我不能执行多个该执行模块在一个单一的过程中阅读。是不是有什么我可以做什么？是否有可能有一个无阻塞的bash读？

I actually have several script like this one. I would like to enclose all of them in a single script. The problem is that execution blocks on the first "read" and I cannot execute multiple "reads" in a single process. Isn't there anything I can do? Is it possible to have a "non-blocking" bash read?

推荐答案

只要把读周期划分为背景（添加＆安培;完成之后）？

Just put the reading cycle into background (add & after done)?

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