Apache Ant Command Line Arguments

Sometimes, project's task require arguments which will be passed to another process by using command line. Ant allows command line arguments, even arguments which contains space characters.

It supports <arg> element to pass arguments and uses various attribute given below.

Attributes

AttributeDescriptionRequired
valueIt is a single line argument which may contain space characters.No
fileA file which is passed as a single line argument.No
pathA path passed as a single command-line argument.Yes
pathrefIt is a path reference.No
lineA list of command-line arguments.No
prefixA fixed string to be placed in front of the argument.No
suffixA fixed string to be placed immediately after the argument.No

Ant treats command line and paths in Unix shell way and it is highly recommended to avoid the line attribute.

Example

It is a single line command line argument having space characters.

A command line argument with two separate options : -l and -a.

when we run only ant from command line without any argument, Ant look for the default file build.xml and execute target.

-build

This argument is used while running build file other than default build.xml.

Ex.

-find

It searches for build file, first into the current directory then in the parent directory and until the file is found.

It require filename, if not passed default build.xml is assumed.

Ex.

-Dproperty

It helps to set property value by using command line. Property is a name of property and value is a value associated to the property.

Ex.

-quiet

It is used to show less information to the console.

Ex.





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