WEBVTT 00:00.080 --> 00:03.500 So far you have seen a bunch of comments that you will use very often. 00:03.500 --> 00:08.120 So those are really the core comments that you really need to get started with the terminal. 00:08.150 --> 00:10.340 Now I want to show you a few more comments. 00:10.340 --> 00:15.830 So not just to show you whatever comments, but those are actually quite useful, especially for the 00:15.830 --> 00:16.580 Raspberry Pi. 00:16.610 --> 00:20.240 So first of all, well this you have seen it already several times. 00:20.240 --> 00:22.070 You can clear the terminal like this. 00:22.070 --> 00:23.060 It's quite useful. 00:23.090 --> 00:27.530 Now there is one command that you can use to get the IP address of your Raspberry Pi. 00:27.560 --> 00:30.860 So provided that you are already actually on the Raspberry Pi. 00:30.890 --> 00:33.380 Okay, so this one is hostname. 00:33.440 --> 00:36.140 And then dash I uppercase. 00:36.500 --> 00:41.810 Make sure the I is uppercase I press enter and you can see this is my current IP address. 00:41.810 --> 00:46.970 So this is the one that I have put on the VNC client to connect to the Raspberry Pi. 00:46.970 --> 00:50.840 And well if you have access to the desktop note you can also get access to the IP address. 00:50.840 --> 00:56.600 You can see it here actually directly when you hover on the WiFi button. 00:56.600 --> 00:58.280 So this can be quite useful. 00:58.280 --> 01:00.930 Of course you need to get access to the Raspberry Pi first. 01:00.930 --> 01:06.480 But if you ever wondering what's the IP address, you know where to find it from the Raspberry Pi. 01:06.510 --> 01:12.960 Then another useful command you can type DF and then slash H. 01:12.990 --> 01:13.920 Just like that. 01:13.920 --> 01:20.910 I'm going to press enter and this one is quite useful to see how much space is available on your SD 01:20.910 --> 01:21.240 card. 01:21.240 --> 01:23.970 So you have a bunch of stuff, but you will find one. 01:23.970 --> 01:26.970 Usually that's like the biggest one here you can see 15GB. 01:26.970 --> 01:29.160 So that's the size of the SD card. 01:29.160 --> 01:30.690 So that's a 16GB. 01:30.690 --> 01:32.910 But here you see 15 for that partition. 01:32.910 --> 01:37.830 And you see that I have already used 6.4GB. 01:37.830 --> 01:42.450 So that's including the OS and every package that I have installed and all the files. 01:42.450 --> 01:49.020 For example if you take some photos and so everything that's on the on the SD card and I have 7.1GB 01:49.050 --> 01:49.620 available. 01:49.620 --> 01:51.060 So with this it's quite useful. 01:51.060 --> 01:57.630 You just type DF and then dash h and you see how much space is available for you to use. 01:57.630 --> 02:03.040 So maybe you can also see if you may need a bigger SD card for your future projects. 02:03.040 --> 02:09.310 And you can get also those basically the same information if you just open a file manager here, for 02:09.310 --> 02:10.810 example, it's in my home directory. 02:10.810 --> 02:14.740 But you see free space seven gigabytes. 02:14.770 --> 02:14.980 Okay. 02:15.010 --> 02:17.410 So that's more or less the same information. 02:17.410 --> 02:22.090 Then the third command I want to show you here is a pseudo. 02:22.120 --> 02:26.230 So you will need to use sudo raspi dash config. 02:26.230 --> 02:28.690 And actually we have used that previously. 02:28.690 --> 02:34.180 So when we first connect it with ssh to enable VNC that's the command that we have used. 02:34.180 --> 02:35.620 And you can use it again here. 02:35.620 --> 02:41.050 So sudo raspi config you press enter and you get to the same menu that we had before. 02:41.050 --> 02:43.840 So I press on the right key to go to finish. 02:43.870 --> 02:45.160 I'm not going to come back to this menu. 02:45.160 --> 02:46.870 Now you can also find this menu. 02:46.870 --> 02:53.500 So we have seen if you go on the menu here and that's going to be Preferences and Raspberry Pi configuration. 02:53.500 --> 02:56.710 That's going to be more or less the same thing. 02:56.720 --> 03:02.030 but actually you might have more options using the terminal menu. 03:02.030 --> 03:02.690 And why is that? 03:02.690 --> 03:08.840 Because most often the graphical tool is basically just based on top of the command line tool. 03:08.870 --> 03:13.460 Okay, it's not a different software, it's just that they used the command line tool and they built 03:13.460 --> 03:19.430 a graphical interface on top of it, which means that at most you have the same amount of functionalities, 03:19.430 --> 03:21.650 but you might have less functionalities. 03:21.650 --> 03:26.540 So when you have the choice between using a graphical tool and the command line for the same thing, 03:26.540 --> 03:30.530 you could expect to have actually more features with the command line. 03:30.530 --> 03:30.860 Great. 03:30.860 --> 03:31.880 And that's pretty much it. 03:31.880 --> 03:37.820 Then the last thing I want to show you is just how to shut down and reboot the Raspberry Pi from the 03:37.820 --> 03:38.540 terminal. 03:38.540 --> 03:41.810 So you have seen you can click here and then shut down. 03:41.810 --> 03:43.490 You can click on Shutdown and reboot. 03:43.610 --> 03:51.380 Quite classic stuff, but you can also do sudo shut down and you will need to provide a time. 03:51.380 --> 03:52.670 So you can just write. 03:52.700 --> 03:53.930 Actually no. 03:53.930 --> 03:55.620 If you do sudo shutdown down. 03:55.620 --> 03:58.020 Now it might ask you for the password or not. 03:58.020 --> 03:58.470 And then. 03:58.500 --> 04:01.380 Well, if you press enter here, it's just going to shut down the Raspberry Pi. 04:01.410 --> 04:04.140 So I'm not going to run this command now. 04:04.140 --> 04:10.470 And if you want to reboot the Raspberry Pi well you just do sudo reboot and it's going to reboot the 04:10.470 --> 04:10.980 Raspberry Pi. 04:10.980 --> 04:15.570 So of course after you press this you will lose the connection to VNC and the Raspberry Pi is going 04:15.570 --> 04:16.980 to reboot, etc.. 04:17.010 --> 04:17.490 All right. 04:17.490 --> 04:21.210 So that's it for this introduction to the terminal on the Raspberry Pi. 04:21.240 --> 04:26.820 90% of what we saw in this section can be applied to any Unix system. 04:26.820 --> 04:31.770 So this is some knowledge that's going to be very useful for you in the future, not just for this course, 04:31.770 --> 04:34.890 but everything you do in the future that's related to it. 04:35.010 --> 04:38.310 And to finish, don't forget to download the PDF. 04:38.310 --> 04:41.490 So there is a recap PDF that you can download with this lesson. 04:41.490 --> 04:43.320 So that's the end of the section nine. 04:43.350 --> 04:48.030 Download this PDF so you can get access to all of the commands very quickly. 04:48.030 --> 04:51.450 So I encourage you to always keep the PDF on the side at first. 04:51.450 --> 04:54.990 And then as you get more practice, you will start to remember the commands.