如果需要，如何在一行中触摸文件和mkdir [英] How to touch a file and mkdir if needed in one line

问题描述

我需要触摸一个具有绝对文件名的文件，例如:/opt/test/test.txt，但是我不确定系统上是否存在/opt/test.因此，代码应与此类似:

I need to touch a file with an absolute file name such as: /opt/test/test.txt, but I'm not sure if there is /opt/test existed on the system. So the code should similar with this:

if (-d '/opt/test') {
    touch '/opt/test/test.txt';
} else {
    mkdir -p '/opt/test';
    touch '/opt/test/test.txt'
}

有没有更好的方法来简化代码?我希望有些系统命令只用一行就可以完成相同的工作.

Is there any better way to simplify the code? I hope there is some system commands that can do the same job with only one line.

推荐答案

在perl中，使用我最喜欢的模块之一:路径::小.

In perl, using one of my favorite module: Path::Tiny.

path("/opt/test/test.txt")->touchpath;

来自文档:

组合mkpath和touch.如果不创建父目录 存在，然后再触摸文件.

Combines mkpath and touch. Creates the parent directory if it doesn't exist, before touching the file.

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