I want to copy text files and only text files from src/ to dst/

groovy:000> "cp src/*.txt dst/".execute().text       
===> 
groovy:000>

You can see the command executes w/out error but the file src/test.txt does not get copied to dst/

This also fails: 

groovy:000> "cp src/* dst/".execute().text       
===> 
groovy:000>

However...

"cp src/this.txt dst/".execute().text

works

Also,

"cp -R src/ dst".execute().text

works

Why dose the wild card seem to cause my command to silently fail?

groovy
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