Turn off and on the HDMI port and the TV. Options: on, off & status.

rpi-hdmi-tv.sh

#!/bin/sh

#Enable and disable TV/HDMI

hdmi_status ()
{
            vcgencmd display_power | grep "display_power=0" >/dev/null
}

cec_status ()
{
            echo pow 0 | cec-client -s -d 1 | grep "power status: standby" >/dev/null
}

case $1 in
            on)
                        echo on 0 | cec-client -s -d 1 | grep "opening a connection to the CEC adapter..." >/dev/null
                        vcgencmd display_power 1 | grep "display_power=1" >/dev/null
                        echo "Display and HDMI have been turned on by user."
            ;;
            off)
                        echo standby 0 | cec-client -s -d 1 | grep "opening a connection to the CEC adapter..." >/dev/null
                        vcgencmd display_power 0 | grep "display_power=0" >/dev/null
                        echo "Display and HDMI have been turned off by user."
            ;;
            status)
if hdmi_status
then
echo "The HDMI port is OFF"
else
echo "The HDMI port is ON"
fi

if cec_status
then
echo "The display is turned OFF"
else
echo "The display is turned ON"
fi
            ;;
*)
echo "Usage: $0 on|off|status" >&2
exit 2
            ;;
esac

exit 0

I took the original idea from this gist.

Options

On: turns on the display and the HDMI port.
Off: turns off the display and the HDMI port.
Status: prints the currents status of the display and HDMI port.

Important

For it to work your display must have CEC and you need to install cec-utils, you can do the latter by running sudo apt-get install cec-utils.

(If your display doesn't have CEC you can delete lines: 10, 11, 12, 13, 17, 22, 34, 35, 36, 37, 38 & 39 to make it work without using CEC).

Sources: Rpi CEC - HowTo Shell Script - vcgencmd

So I was having a problem with my previous rpi-hdmi-tv.sh so can I just copy and paste this in that file in that file and it will work?

Yes, if you installed cec-utils it should work. For me at least, its been working with no problems.

works perfectly. Thank you!

Works perfectly, thanks so much!