If you are new to SL4A and scripting, take a look at this wiki entry about using SL4A with Tasker.
This python script does one simple thing that is otherwise not yet possible with Tasker: it copies the contents of an entire file to the clipboard. To run it, download the script to your sl4a/scripts folder, then create a task that looks like this:
- A1: Variable Set [ Name:%FNAME To:TheNameOfTheFileYouWantInTheClipboard ]
- A2: Run Script [ Name:CopyFileToClipboard.py Terminal:Off Pass Variables: %FNAME ]
After the file is in the clipboard, you can set a variable to the contents of the clipboard.
I'll monitor this Tasker forum thread for questions.