使用 bash 设置参数
我经常运行一个简单的 bash 命令：
rpm -Uvh --define "_transaction_color 3" myPackage.rpm
它工作正常。
但现在我尝试将其编写到 bash 文件中，并使其更加灵活：
#!/bin/bash
INSTALL_CMD=rpm
INSTALL_OPT="-Uvh --define '_transaction_color 3'"
${INSTALL_CMD} ${INSTALL_OPT} myPackage.rpm
但是，这不断生成错误：
error: Macro % has illegal name (%define)
该错误来自 --define 和引用的 _transaction_color 已处理。
我尝试了各种转义、不同的措辞，甚至使 INSTALL_OPT 成为一个数组，用 ${INSTALL_OPT[@]} 处理。
到目前为止，我的尝试还没有奏效。
显然，我想要的非常简单。我只是不确定如何实现它。
如何让 bash 正确处理我的 --define 参数？
I frequently run a simple bash command:
rpm -Uvh --define "_transaction_color 3" myPackage.rpm
which works properly.
But now I'm trying to script it into a bash file, and make it more flexible:
#!/bin/bash
INSTALL_CMD=rpm
INSTALL_OPT="-Uvh --define '_transaction_color 3'"
${INSTALL_CMD} ${INSTALL_OPT} myPackage.rpm
However, this keeps generating the error:
error: Macro % has illegal name (%define)
The error is coming from how --define and the quoted _transaction_color is handled.
I've tried a variety of escaping, different phrasing, even making INSTALL_OPT an array, handled with ${INSTALL_OPT[@]}.
So far, my attempts have not worked.
Clearly, what I want is extremely simple. I'm just not sure how to accomplish it.
How can I get bash to handle my --define argument properly?
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问题是变量替换后不处理引号。所以看起来您正在尝试定义一个名为
'_transaction_color的宏。尝试使用数组：
然后：
将
${INSTALL_OPT[@]}放在双引号内以获得重新引用非常重要。The problem is that quotes are not processed after variable substitution. So it looks like you're trying to define a macro named
'_transaction_color.Try using an array:
then:
It's important to put
${INSTALL_OPT[@]}inside double quotes to get the requoting.这可能是空格上分词的 bash 问题：
尝试：
It might be a bash issue with word splitting on space:
Try: