How to write a variable in to file in ant?

Question

i have a variable abc and had the value this is ant script. This abc variable will keep on changing.

Using ANT script, how can i write the value out to the file?

What do you mean by 'variable'? Ant properties are not mutable. — martin clayton, Jan 12 '11 at 15:09

score 45 · Answer 1 · answered Jan 13 '11 at 20:30

45

The echo task in ANT is able to write to files

<echo file="output.txt" append="true">
   abc=${abc}
</echo>

answered Jan 13 '11 at 20:30

Mark O'Connor

3

Here's the [official docs for the echo task](http://ant.apache.org/manual/Tasks/echo.html). – sschuberth Nov 13 '13 at 09:21

score 30 · Answer 2 · answered Feb 28 '12 at 07:51

Use propertyfile task. An example taken from ant manual:

<propertyfile file="my.properties">
  <entry  key="abc" value="${abc}"/>
</propertyfile>

This may be better than echo as it updates the properties file with a given value, while echo appends to or overwrites the whole file.

2 Answers2