Issuing "sudo" cmds + password from Rev Scripts

[Sivakatirswami]

I've been bitten very hard recently with Apple's new quarantine bit set 
in extended attributes for downloaded files. I used to be able to open 
20-40 text files that I might receive from a remote correspondent, in 
BBedit in one go and spellcheck them rapidly... Now I get the dread 
"This is a web application downloaded from the internet...."  I click 
"OK" and only the first of the selected files open.

It is possible to set up folder actions with apple script to apply:

sudo xattr -d com.apple.quarantine /Downloads

to all incoming downloads saved that folder. One can also drop into 
terminal and work on the cmd line... very inefficient..  I would like to 
make a little Rev utility to run against an existing file set that may 
have been moved or saved to a different location.

How do does one deal, from within a Rev script, with the shell 
requirement to enter the password before sudo executes? I saw an earlier 
thread where one might approach this by doing it thru apples script. 
Does that mean it's not possible with transcript alone?

Or perhaps someone knows of such a utility already? I can't find one on 
the net and people are complaining about this as recently as Jan 20th... 
It will be a simple matter to set up a drag and drop button that gets a 
path and runs the cmd against all files in a folder... but I need a way 
to supply the password...