Script to check system is locked or not at certain time

Question

I want to write a script to check whether system is locked or not at certain time.

So can anyone tell me what would be the condition to verify that system is locked or not ?

Thanks in advance!!

Answer 1

I found the answer for ubuntu 14.04

#!/bin/bash
dbus-monitor --session "type='signal',interface='com.ubuntu.Upstart0_6'" | \
(
  while true; do
    read X
    if echo $X | grep "desktop-lock" &> /dev/null; then
      SCREEN_LOCKED;
    elif echo $X | grep "desktop-unlock" &> /dev/null; then
      SCREEN_UNLOCKED;
    fi
  done
)

This script will print the lock screen activity.

Reference: run-script-on-screen-lock-unlock