如何使用 bash 脚本匹配路径中的字符串/目录

发布于 2024-08-24 04:04:42 字数 646 浏览 5 评论 0原文

我正在尝试创建一个 Makefile，它使用路径中的信息来创建相关的 rpm 名称。假设我有两个不同的可能路径：

PATH1 = /usr/local/home/jsmith/code/main
PATH2 = /usr/local/home/jsmith/code/dev/ver2

如果在路径中检测到“main”，我想检测“main”并将其附加到 rpm 名称。如果在路径中检测到“dev”，我想检测并将“ver2”附加到 rpm 名称。

我是 shell 脚本新手，真的不知道从哪里开始。我可以很容易地在Python之类的东西中做到这一点，但它是一个Makefile，所以我需要在shell中做到这一点。

路径中的“main”将是常量，但如果“main”不存在，则需要提取开发路径名称。以下是一些割草示例：

/usr/local/home/jsmith/code/main /usr/local/home/jsmith/code/dev/ver_usa /usr/local/home/jsmith/code/dev/ver_mexico /usr/local/home/jsmith/code/dev/ver3

如果“dev”存在，则需要提取“ver_usa”、“ver_mexico”、“ver3”等。需要提取的目录名称如下“开发”。

原文

I'm trying to create a Makefile that uses information from the path to create a relevant rpm name. Suppose I have two different possible paths:

PATH1 = /usr/local/home/jsmith/code/main
PATH2 = /usr/local/home/jsmith/code/dev/ver2

If "main" is detected in the path, I want to detect and append "main" to the rpm name. If "dev" is detected in the path, I want to detect and append "ver2" to the rpm name.

I'm new to shell scripting and really don't have a good idea on where to start. I could easily do this in something like python, but its for a Makefile so I need to do it in shell.

"main" in the path would be constant, but if "main" doesn't exist, the dev path name would need to be extracted. Here's a few mow examples:

/usr/local/home/jsmith/code/main
/usr/local/home/jsmith/code/dev/ver_usa
/usr/local/home/jsmith/code/dev/ver_mexico
/usr/local/home/jsmith/code/dev/ver3

If "dev" existed, it would be needed to extract "ver_usa", "ver_mexico", "ver3", etc. The dir name needing to be extracted would exactly follow "dev".

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庆幸我还是我 2024-08-31 04:04:43

使用 grep 并检查返回值？

此外，您可以在 Makefile 中运行 python。

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烟雨凡馨 2024-08-31 04:04:43

看起来路径的最后一个元素总是您想要的。

rpmname=$rpmname+${pathname##*/}

或者

rpmname=$rpmname+$(basename pathname)

It looks like the last element of the path is always the one you want.

rpmname=$rpmname+${pathname##*/}

rpmname=$rpmname+$(basename pathname)

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败给现实 2024-08-31 04:04:42

像这样，假设“main”和“ver2”不是常数

some_rpm_name="some rpm"
PATH=/usr/local/home/jsmith/code/main
#PATH2=/usr/local/home/jsmith/code/dev/ver2
s=${PATH##*/}
case "$s" in
  *main ) RPM_NAME="${some_rpm_name}_main";;
  *ver2) RPM_NAME="${some_rpm_name}_ver2";;
esac
echo $RPM_NAME

something like this, assuming "main" and "ver2" are not constant

some_rpm_name="some rpm"
PATH=/usr/local/home/jsmith/code/main
#PATH2=/usr/local/home/jsmith/code/dev/ver2
s=${PATH##*/}
case "$s" in
  *main ) RPM_NAME="${some_rpm_name}_main";;
  *ver2) RPM_NAME="${some_rpm_name}_ver2";;
esac
echo $RPM_NAME

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