Setting name extension droplet

Scripting Forums AppleScript | Mac OS X
#1

I’m creating a script to add file extensions based on mime types but my script comes back saying

Heres my script:

on open myFile
	set myPath to (POSIX path of myFile)
	set myType to do shell script "file --mime-type -b " & (quoted form of myPath)
	tell application "Finder"
		if myType is "image/jpeg" then set name extension of myFile to "jpg"
	end tell
end open

Can any kind soul tell me where I’m stumbling?

#2

Hi,

the error message says, the Finder can’t set the name extension, because myFile is a list.
The cause is the open handler, whose parameter is always a list of aliases