Apply a Mac Tag / Label color to a file via Bash + AppleScript

mac_label.sh

#!/bin/bash

# http://stackoverflow.com/questions/6212219/passing-parameters-to-a-bash-function
# http://superuser.com/questions/168927/mac-os-x-how-to-change-the-color-label-of-files-from-the-terminal

# Set Finder label color
label() {
	#echo "Default colors:"
    #echo " 0  No color"
    #echo " 1  Orange"
    #echo " 2  Red"
    #echo " 3  Yellow"
    #echo " 4  Blue"
    #echo " 5  Purple"
    #echo " 6  Green"
    #echo " 7  Gray"
	colorvalue="$1"
	file="$2"
	osascript - ${colorvalue} ${file} << EOF >/dev/null 2>&1
    on run argv
        set labelIndex to (item 1 of argv as number)
        repeat with i from 2 to (count of argv)
          tell application "Finder"
              set theFile to POSIX file (item i of argv) as alias
              set label index of theFile to labelIndex
          end tell
        end repeat
    end run
EOF
}

# example call
# label 6 "$filename"