如何在 Jenkins 中使用 Windows 批处理命令使用环境变量？
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How are environment variables used in Jenkins with Windows Batch Command?
提问by DonBecker
I'm trying to use Jenkins (Global) environment variablesin my xcopy script.
我正在尝试在我的 xcopy 脚本中使用Jenkins（全局）环境变量。
${WORKSPACE} doesn't work
"${WORKSPACE}" doesn't work
'${WORKSPACE}' doesn't work
回答by dbenham
I know nothing about Jenkins, but it looks like you are trying to access environment variables using some form of unix syntax - that won't work.
我对 Jenkins 一无所知，但看起来您正在尝试使用某种形式的 unix 语法访问环境变量 - 这是行不通的。
If the name of the variable is WORKSPACE, then the value is expanded in Windows batch using%WORKSPACE%. That form of expansion is performed at parse time. For example, this will print to screen the value of WORKSPACE
如果变量的名称是 WORKSPACE，则在 Windows 批处理中使用%WORKSPACE%. 这种形式的扩展是在解析时执行的。例如，这将打印到屏幕 WORKSPACE 的值
echo %WORKSPACE%
If you need the value at execution time, then you need to use delayed expansion !WORKSPACE!. Delayed expansion is not normally enabled by default. Use SETLOCAL EnableDelayedExpansionto enable it. Delayed expansion is often needed because blocks of code within parentheses and/or multiple commands concatenated by &, &&, or ||are parsed all at once, so a value assigned within the block cannot be read later within the same block unless you use delayed expansion.
如果在执行时需要该值，则需要使用延迟扩展!WORKSPACE!。默认情况下通常不启用延迟扩展。使用SETLOCAL EnableDelayedExpansion来启用它。通常需要延迟扩展，因为括号内的代码块和/或由&,&&或连接的多个命令被||一次性解析，因此块内分配的值无法在同一块中稍后读取，除非您使用延迟扩展。
setlocal enableDelayedExpansion
set WORKSPACE=BEFORE
(
set WORKSPACE=AFTER
echo Normal Expansion = %WORKSPACE%
echo Delayed Expansion = !WORKSPACE!
)
The output of the above is
上面的输出是
Normal Expansion = BEFORE
Delayed Expansion = AFTER
Use HELP SETor SET /?from the command line to get more information about Windows environment variables and the various expansion options. For example, it explains how to do search/replace and substring operations.
使用HELP SET或SET /?从命令行获取有关 Windows 环境变量和各种扩展选项的更多信息。例如，它解释了如何进行搜索/替换和子字符串操作。
回答by Volodymyr Bezuglyy
In windows you should use %WORKSPACE%.
在 Windows 中，您应该使用%WORKSPACE%.
回答by Aykut ?ALI?KAN
I should this On Windows, environment variable expansion is %BUILD_NUMBER%
我应该在 Windows 上，环境变量扩展为 %BUILD_NUMBER%
