content: tell application "Finder"
  	set theFileFull to selection as text
  	set theFileFull to quoted form of POSIX path of theFileFull
  	
  	
  	set renameFile to do shell script "echo '" & theFileFull & "' | sed -e 's/ /_/g'"
  	
  	do shell script "mv " & theFileFull & " " & renameFile
  	
  	
  	
  end tell
  