/bin/sleep is Linux or Unix command to delay for a specified amount of time. You can suspend the calling shell script for a specified time. For example, pause for 10 seconds or stop execution for 2 mintues. In other words, the sleep command pauses the execution on the next shell command for a given time.

How do I delay a script in Linux?

Within the script you can add the following in between the actions you would like the pause. This will pause the routine for 5 seconds. read -p “Pause Time 5 seconds” -t 5 read -p “Continuing in 5 Seconds….” -t 5 echo “Continuing ….”

What is $? In Linux shell script?

$? is a special variable in shell that reads the exit status of the last command executed. After a function returns, $? gives the exit status of the last command executed in the function.