How are square brackets enclosed around clipboard text.
Using this to append clipboard text and trying to surround it with square brackets - does not work
Rename PATTERN="*" TO="* [{clip}]"
That works fine as-is.
You might have something in the clipboard that isn't suitable for pasting into the name.
More detail than "does not work" would be helpful. 
strange - it is working now, was getting abort error. thanks for quick response.