如何从 bash/shell 脚本中的 java 属性文件中提取值并将其存储在变量中并 cd 到该变量 [英] How to extract values from a java properties files in a bash/shell script and store in a variable and cd to that variable

问题描述

我有一个 config.properties 文件，其中包含类似 ouputdir=/data1/testdata/output 的路径.我能够在 shell 中提取这些并将此路径存储在一个变量中.当我尝试将目录更改为此路径时，出现类似以下错误:No such file or directory/data1/testdata/output, thoutth this path exists.

I have a config.properties file which contains a path like ouputdir=/data1/testdata/output. I am able to extract these in shell and store this path in a variable. While I am trying to change directory to this path, I am getting error something like: No such file or directory/data1/testdata/output, thouth this path exists.

我尝试的是:

configPath=/data1/testdata.config.properties
my_value=$(grep outputdir $configPath|  awk -F= '{print $2}')
echo $my_value
cd $my_value

由此我可以打印 my_value 变量中的路径.但我无法将目录更改为 $my_value.谁能告诉我这里有什么问题以及如何将目录更改为该变量.

by this I am able to print the path in my_value variable.but I am not able to change directory to $my_value.can anybody tell me what is wrong here and how can I change directory to this variable.

推荐答案

你所拥有的应该有效.检查显而易见的，该目录拼写正确并且确实存在.

What you have should work. Check the obvious, that the directory is spelled right and does exist.

就其价值而言，您可以将 grep 和 awk 命令合二为一:

For what it's worth, you could combine the grep and awk commands into one:

my_value=$(awk -F= '$1=="outputdir" {print $2}')

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