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May 27

How to pass command line arguments to an Ant build

java, tools Add comments

Sometimes you need to pass an argument on the command line to be used by your Ant build.

You can achieve this by passing it as a system property using the -D option. eg.

ant -Dmyarg=abc build

You can then access that system property in your build script as ${myarg}. eg. The following will replace all occurrences of ‘@@@’ with the value of myarg specified on the command line (‘abc’ in the above example)

<replace dir="${src}" token="@@@" value="${myarg}">
  <include name="**/*.html"/>
</replace>

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