Shell Script: Pausing the execution with sleep command

To pause the execution of shell script use sleep command.

Examples:

sleep 1   # Pause for 1 sec
sleep 1s  # Pause for 1 sec
sleep 1m  # Pause for 1 min
sleep 1h  # Pause for 1 hour
sleep 1d  # Pause for 1 day
sleep .1  # Pause for 100 mili-sec i.e. 0.1sec

Thank you