如何将变量或名称拆分为变量？

Using shell scripting, I want to split the name into an variable. Suppose in my .conf file the data is like this:

使用shell脚本,我想将名称拆分为变量。假设我的.conf文件中的数据是这样的:

ssh.user = root
ssh.server = localhost

then I want this ssh.user in one variable and root in another variable? So what should I do?

那么我想在一个变量中使用ssh.user并在另一个变量中使用root?所以我该怎么做?

1 个解决方案

#1

If you can live with a solution that doesn't use dots in the variable names, you could just use source (source will execute the file given as argument as a script):

如果你可以使用不在变量名中使用点的解决方案,你可以只使用source(source将执行作为参数作为脚本给出的文件):

A file called config

一个名为config的文件

sshuser = root
sshserver = localhost

`And then the script using that configuration:

`然后使用该配置的脚本:

#!/bin/bash
source config
echo $sshuser

will output

root

Several techniques other than sourcing are explained right here on * Reading a config file from a shell script

除了源之外的几种技术在*上解释了从shell脚本读取配置文件

Now, the fact that your variables contain a dot is an issue, but perhaps another technique (using awk) explained in yet another SO question could help: How do I grab an INI value within a shell script?

现在,你的变量包含一个点的事实是一个问题,但也许另一个技术(使用awk)在另一个SO问题中解释可能有所帮助:我如何在shell脚本中获取INI值?

Applied to your case that will give something like

适用于你的情况会给出类似的东西

ssshuser=$(awk -F "=" '/ssh.user/ {print $2}' configurationfile)

Last potential issue, the whitespaces. See here How to trim whitespace from a Bash variable?

最后一个潜在的问题,即空白。请参见此处如何从Bash变量中修剪空格?

#1