Using scrot to capture screen and send that screen capture image by Telegram bot

send-pi-screen

#!/bin/sh

BINDIR="${HOME}/bin"
WORKDIR="/tmp/capture"
SENDPHOTO="$BINDIR/botSendPhoto" # see botSendPhoto.sh script

## mode 777 is needed since we capture screen as 'pi' user
[ ! -d $WORKDIR ] && mkdir -m 0777 -p $WORKDIR 
cd $WORKDIR || exit

CAPTION="`hostname` screen capture `date +%Y%m%d_%H%M%S`"

## This is run as 'pi' user on raspberry pi raspbian ##
DISPLAY=:0.0 sudo -u pi scrot -z -d 5 -q 25 capture.png

# 		Caption ImageFile To
$SENDPHOTO "$CAPTION" capture.png $USER