巴什/ SH - 之间及功放差异;＆安培;和; [英] Bash/sh - difference between && and ;?

问题描述

我通常使用; 多个命令行结合起来，但有些人preFER ＆放大器;＆安培; 。有什么区别吗？例如， CD〜; CD - 和 CD〜＆放大器;＆安培; CD - 似乎让同样的事情。什么版本更便携，例如将由类似Android的壳左右bash的子集的支持？

I normally use ; to combine more than one command in a line, but some people prefer &&. Is there any difference? For example, cd ~; cd - and cd ~ && cd - seems to make the same thing. What version is more portable, e.g. will be supported by a bash-subset like Android's shell or so?

推荐答案

如果previous命令失败; 第二个将运行

If previous command failed with ; the second one will run.

但随着＆放大器;＆安培; 第二个将无法运行。

But with && the second one will not run.

这是操作之间的懒逻辑与操作。

This is a "lazy" logical "AND" operand between operations.

这篇关于巴什/ SH - 之间及功放差异;＆安培;和;的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！