the set of expression that should be passed to the script.
the command that should be executed.
the attributes that are produced by the script.
the set of expression that should be passed to the script.
the attributes that are produced by the script.
the attributes that are produced by the script.
the command that should be executed.
Transforms the input by forking and running the specified script.
the set of expression that should be passed to the script.
the command that should be executed.
the attributes that are produced by the script.