 Hello! Today we're going to be looking at freezing and unfreezing commands you have running in the shell with some keyboard shortcuts that are commonly used. So let's just do this real quick. I will make a simple while loop and I will just have it loop forever until I kill it. We will clear the screen, print the date command, print the date and time, and then we'll have it sleep for one second and then loop. I'm going to do that and we have to put the do here. Now every second is going to update this little clock and we're going to see the seconds move forward. If I hit Ctrl S, it stops. We have frozen the command and I'm telling you this because you might need to freeze a command at some point in the future. You also might accidentally hit that. Ctrl S is very common for saving files in a lot of programs so it might be something and I use Tmux and I use Ctrl A a lot so you might accidentally hit it and if you didn't know what was going on you're like why did my program freeze? To unfreeze it you hit Ctrl Q. So Ctrl S to freeze, Ctrl Q to unfreeze, Ctrl C to kill. Let's use this in another scenario. Let's go ahead and just say find and I'll list out all the files on my computer here we go and they're going and if I hit Ctrl S it will freeze them and if I hit Ctrl Q it unfreezes them. So you're going, going, going, oh wait I want to stop it and maybe you want to scroll up or whatever you can and then Ctrl Q to continue. Ctrl S, Ctrl Q, Ctrl, oh the script finished running. So that is those commands. I do thank you for watching. I thank you for listening to me. I hope you found this useful whether you need to use the Ctrl S command or you accidentally hit it in the past and you didn't know why things were frozen. So I do thank you for watching. I thank you for listening and I hope that you have a great day.