强制shell脚本fflush [英] Force a shell script to fflush

问题描述

我想知道是否有可能告诉bash中，为所有呼叫回声或的printf 应随访通过向后续调用 fflush（）在标准输出/标准错误分别？

I was wondering if it was possible to tell bash that all calls to echo or printf should be followed up by a subsequent call to fflush() on stdout/stderr respectively?

一个快速和肮脏的解决办法是写这样做我自己的printf的执行情况，并代替使用它可内置，但它发生，我认为我可能不需要。

A quick and dirty solution would be to write my own printf implementation that did this and use it in lieu of either built in, but it occurred to me that I might not need to.

我正在写一次运行多个构建脚本，用于调试需要我的真正的需要看到的是他们为了写邮件。

I'm writing several build scripts that run at once, for debugging needs I really need to see messages that they write in order.

推荐答案

如果命令对应使用标准输入输出，并连接到他们将每行刷新终端。
否则，你就需要使用上的命令类似stdbuf在管道
<一href=\"http://www.pixelbeat.org/programming/stdio_buffering/\">http://www.pixelbeat.org/programming/stdio_buffering/

If comands use stdio and are connected to a terminal they'll be flushed per line. Otherwise you'll need to use something like stdbuf on commands in a pipe line http://www.pixelbeat.org/programming/stdio_buffering/

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