根据文件中的键值对设置环境变量，其中某些值为引用的表达式

问题描述

我已经创建了以下bash脚本，以便从名为 params.env 的特定文件导出值：

I have made the following bash script in order to export values from a specific file named params.env:

#!/bin/bash

SOURCE="${BASH_SOURCE[0]}"
while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
  DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
  SOURCE="$(readlink "$SOURCE")"
  [[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
done

SOURCE=$(dirname ${SOURCE})

export $(cat "${SOURCE}/../params.env" | xargs)

params.env 具有以下值：

Param1=param1
Param2="Space separated value"

但是它成功导出Param1，但是它无法导出Param2。

But it successfully exports Param1 but it fails to export Param2.

你有什么想法吗？

推荐答案

首先 - 如果您信任您的文件以您当前用户的权限安全地评估为shell脚本，则可能很简单：

First -- if you trust your file to be safely evaluated as a shell script with your current user's privileges, this could be as simple as:

set -a                           # automatically export all shell variables
source "${SOURCE}/../params.env" # evaluate file as a shell script
set +a                           # turn off automatic export

---

否则，是适当的。

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