Example of how to use the wait command: #!/bin/bash command1 & command2 & wait echo "Ambos comandos foram finalizados" See also: Most used programming languages In this example, the script starts the commands command1 and command2 in the background using the & symbol. The wait command is then used to wait until both commands have finished before displaying the message “Both commands have finished . ” Additionally, the wait command also returns the exit code of the terminated child process, allowing you to check whether the process terminated successfully or if there was an error. Sleep Command The sleep command is used to pause the execution of a script or command for a specific period of time.
It is typically used to add delays between business owner database actions in a script or to schedule tasks to run at a specific time. The basic syntax of the sleep command is: sleep time Where time is the amount of time in seconds that you want to pause execution. The time can be specified as an integer or as a fraction (for example, 0.5 seconds ). command: #!/bin/bash echo "Starting" sleep 5 echo "Finishing" In this example, the script displays the message “Starting” , then pauses execution for 5 seconds using the sleep command , and finally displays the message “Finishing” .