Function to take a screenshot on the currently-connected Android device and drop it on your Mac’s Desktop.

gistfile1.sh

function androidScreenshot
{
    # only do this if there is a device connected
    adb shell exit 2>/dev/null
    if [[ $? == 0 ]]; then
        # Example filename: ~/Desktop/Android Screen 2013-09-11 12.32.16 PM.png
        # perl line ending hacks from http://blog.shvetsov.com/2013/02/grab-android-screenshot-to-computer-via.html
        dateString=`date +"%Y-%m-%d at %I.%M.%S %p"`
        fileName="Android Screen $dateString.png"
        adb shell screencap -p | perl -pe 's/\x0D\x0A/\x0A/g' > ~/Desktop/$fileName
    else
        echo "No android device connected."
    fi
}