Close and Re-open Script

Use an osascript call.

/usr/bin/osascript<<END
tell application "Google Chrome"
open
end tell
END

Hi, why do you need to run this as loggedInUser and su? I would make this:

#!/bin/bash
pkill -a -i "Google Chrome"
open -a Google Chrome

but if you want do run as su and loggedInUser then it working so:

#!/bin/bash
pkill -a -i "Google Chrome"
loggedInUser=`python -c 'from SystemConfiguration import SCDynamicStoreCopyConsoleUser; import sys; username = (SCDynamicStoreCopyConsoleUser(None, None, None) or [None])[0]; username = [username,""][username in [u"loginwindow", None, u""]]; sys.stdout.write(username + "
");'`
su -l $loggedInUser -c "open -a Google Chrome"

The mistakes is here, your script look like so:

su -l $loggedInUser -c "open -a "Google Chrome""

and have to be so:

su -l $loggedInUser -c "open -a Google Chrome"

or so:

su -l $loggedInUser -c "open -a 'Google Chrome'"