WEBVTT 00:01.080 --> 00:04.480 Okay, now the program is almost completed. 00:04.480 --> 00:04.880 Okay. 00:05.440 --> 00:10.880 We have gone up to here and let me see the terminal here. 00:10.880 --> 00:16.400 You see, while we are executing our program, first it is showing us the result for ifconfig and then 00:16.400 --> 00:19.080 it is printing me the current Mac address. 00:19.400 --> 00:21.840 So it is not what we want okay. 00:21.880 --> 00:22.440 So let's go. 00:22.440 --> 00:23.720 What is the c. 00:23.720 --> 00:25.080 What is the the next step. 00:25.080 --> 00:31.160 It is checking if mac in ifconfig is what the user requested or not. 00:31.800 --> 00:34.480 Okay I will do that in the next lecture. 00:34.480 --> 00:38.520 But here I am going to handle this okay. 00:38.560 --> 00:43.480 As you see this, all are is responsible for getting the current Mac address. 00:43.640 --> 00:47.960 So I'm going to move this into a new function okay I'm going to cut this. 00:48.480 --> 00:51.080 And let's create a new function here. 00:51.080 --> 00:58.200 Let's say get current Mac address. 00:58.200 --> 01:04.920 And you know that it is asking or for interface getting the interface. 01:04.920 --> 01:05.640 So let's. 01:07.880 --> 01:08.920 Hit tab here. 01:10.810 --> 01:12.370 and here. 01:13.010 --> 01:16.170 One thing that we don't need to use is options. 01:16.690 --> 01:23.490 And options here is out of this function, as it's almost in the other area, and we are not able to 01:23.530 --> 01:24.890 access it from here. 01:24.890 --> 01:27.130 So I need to remove that option from here. 01:27.810 --> 01:37.930 There we go and print if config result I don't need to print the result for if config and then. 01:40.210 --> 01:43.730 The thing I need here into the if statement. 01:43.730 --> 01:49.370 As you see here, we are printing this Mac address search result. 01:49.410 --> 01:52.090 It is better to return this okay. 01:52.090 --> 01:57.450 While we we use something in function it is better to return. 01:57.490 --> 01:57.890 Okay. 01:57.930 --> 02:03.850 So now it is returning the Mac address search result and later we can get it here. 02:03.850 --> 02:07.570 And then we will be able to use it okay. 02:09.050 --> 02:11.010 So good. 02:11.530 --> 02:16.050 Now let's come right here I'm going to use that here okay. 02:16.090 --> 02:16.850 It is. 02:16.850 --> 02:19.300 Just get the current Mac address. 02:19.340 --> 02:19.740 Okay. 02:19.980 --> 02:23.860 So let's use that get current Mac address. 02:23.860 --> 02:31.540 Here I am going to give the interface okay options dot interface. 02:31.860 --> 02:32.300 Okay. 02:32.620 --> 02:36.420 So now we have it I am going to store this into a variable. 02:37.020 --> 02:39.220 Let's name this variable. 02:41.660 --> 02:45.180 Current Mac okay. 02:45.180 --> 02:51.020 Now that we have this current Mac here I am going to print the current Mac address. 02:51.020 --> 02:55.540 So here what it is trying to change to get the current Mac address. 02:55.540 --> 02:58.740 So if it is able to get it we will be able to print it here. 02:58.940 --> 03:01.300 If it is not able to get the current Mac address. 03:01.300 --> 03:04.980 So it will print this one, but not Mac address. 03:04.980 --> 03:07.180 So here I am going to print 03:09.100 --> 03:11.820 um current. 03:13.940 --> 03:21.620 Mac address is equal to concatenate this with current Mac. 03:21.660 --> 03:24.780 Okay, maybe this current Mac is not a string. 03:24.780 --> 03:30.430 So if it is not a string, you need to change it to str, which is string. 03:30.470 --> 03:30.830 Okay. 03:33.550 --> 03:36.950 Now I'm going to save this and let's go back here. 03:37.310 --> 03:43.990 Right now I'm trying to change this for eth0 or access it for eth0 and trying to change it. 03:43.990 --> 03:49.310 You see it is giving me the current Mac address is equal to something like this. 03:49.310 --> 03:54.670 And what if I try to access it for low. 03:56.870 --> 04:03.110 And you see that could not read the Mac address and current Mac current Mac is equal to Nat. 04:03.150 --> 04:04.350 So perfect. 04:04.510 --> 04:09.270 Now we are able to have a better look of the error message. 04:09.710 --> 04:11.910 Instead of having a lot of thing. 04:11.910 --> 04:13.830 Here we have only two messages. 04:13.870 --> 04:19.830 Current Mac address is equal to current Mac address, and the current Mac address is equal to none. 04:19.830 --> 04:20.270 Okay. 04:20.870 --> 04:21.990 So perfect. 04:22.190 --> 04:30.870 Let's go and see how we can do the next part which is which is to check if Mac in if config is what 04:30.870 --> 04:32.310 the user requested. 04:32.350 --> 04:33.870 So let's go and see that.