1 00:00:00,330 --> 00:00:01,090 Hi, everyone. 2 00:00:01,110 --> 00:00:06,360 In this lecture, we are going to learn one more very important Carmin, and that is getting help. 3 00:00:07,140 --> 00:00:15,270 OK, so nearly every command and application or we can see utility has a dedicated health file in Linux 4 00:00:15,570 --> 00:00:20,460 so that simply provide the guidance for how to use it. 5 00:00:20,910 --> 00:00:28,470 So, for instance, if I needed help using the best wireless tool like aircraft Ginji so I could simply 6 00:00:28,470 --> 00:00:32,490 type aircraft air crack Oxfordians. 7 00:00:32,490 --> 00:00:36,690 Correct, engy and if I want help. 8 00:00:36,720 --> 00:00:44,980 So what I need to do here is simply use double hyphen with the word help, OK, with the word help. 9 00:00:45,600 --> 00:00:49,950 So after hitting enter, as you can see that this is the description. 10 00:00:51,400 --> 00:00:58,480 When you scroll it up, is the basic description you'll find here after typing this particular command, 11 00:00:58,480 --> 00:01:01,240 which is aircraft double hyphen help. 12 00:01:01,570 --> 00:01:05,950 So what is the significance of using Doval hyphen and oxidised so. 13 00:01:07,400 --> 00:01:08,810 Let me clear it first. 14 00:01:09,410 --> 00:01:18,350 OK, I suppose that this is the two e-mail and I want to use like I, I just want to use with a simple 15 00:01:18,860 --> 00:01:20,420 with a single hyphen ahead. 16 00:01:20,440 --> 00:01:21,260 So what? 17 00:01:22,180 --> 00:01:32,470 What we have here is in the convention and clinics, it is to use a double test before word option and. 18 00:01:33,420 --> 00:01:40,800 We can use single dads with a single letter option, so I'm getting it, if not, so let me explain 19 00:01:40,800 --> 00:01:40,910 it. 20 00:01:40,920 --> 00:01:44,750 Suppose that they are using this as we all know that help is a word. 21 00:01:45,000 --> 00:01:51,570 So what we need to use here is as for the convention of Linux, we need to use double hyphen. 22 00:01:52,110 --> 00:01:59,370 OK, now suppose that if you're using only a single word, which is a hell of a stretch, so. 23 00:02:00,360 --> 00:02:08,480 As for the convention, you need to use only a single hyphen, is this clear, guys, you can use double 24 00:02:08,550 --> 00:02:13,680 hyphen help in case of what we need to use double hyphen. 25 00:02:14,430 --> 00:02:18,170 You should use single hyphen in case of a single word. 26 00:02:18,420 --> 00:02:19,240 Is this clear? 27 00:02:19,550 --> 00:02:20,250 No, that's so. 28 00:02:20,250 --> 00:02:27,870 When you enter the enter, simply come on, you should Chiuso description, like, let me do it again. 29 00:02:31,000 --> 00:02:38,050 You can see the short description of the tool and guidance on how to use it, so in some cases you can 30 00:02:38,050 --> 00:02:47,320 use simply again, let me clear it so you can use hyphen edge or you can also use hyphen questionmark 31 00:02:48,040 --> 00:02:49,000 for getting help. 32 00:02:49,450 --> 00:02:55,040 OK, suppose that I want to check the description to how to use and map. 33 00:02:55,690 --> 00:03:00,520 So what I can do now let's try with Hyphen Edge now 10 Bazoft. 34 00:03:00,520 --> 00:03:06,010 Any data, as you can see that I'm having does description to how to use and map. 35 00:03:06,640 --> 00:03:17,400 OK, so now let's try with our older one which is OK and map the hyphen help and hit enter. 36 00:03:17,410 --> 00:03:19,060 So I'm getting the same result. 37 00:03:19,390 --> 00:03:26,810 Now let's try with our new one which is and map hyphen this. 38 00:03:26,860 --> 00:03:28,440 Now this is not working here. 39 00:03:29,020 --> 00:03:36,520 So unfortunately all the many applications supports all three options, like there's. 40 00:03:39,340 --> 00:03:44,770 These all are the three options with the help of the you can see the help description of any particular 41 00:03:44,770 --> 00:03:51,290 tool, but there is no guarantee the application you are using will or not. 42 00:03:51,490 --> 00:03:57,080 So if one option doesn't work, then simply right next to one or another one. 43 00:03:57,310 --> 00:04:02,950 So in this particular case, in case of Inmet, these two are working, but this is not working. 44 00:04:03,160 --> 00:04:06,190 So this is how you can play with all of these. 45 00:04:06,280 --> 00:04:14,710 OK, so this is how you can get help from from the files that are present that is present inside any 46 00:04:14,710 --> 00:04:21,000 particular tool using Discman command, which is hyphen, hyphen, help, hyphen, edge, hyphen, questionmark. 47 00:04:21,160 --> 00:04:26,290 OK, so this is all for this lecture from the next election or if you're going to see some very advanced 48 00:04:26,290 --> 00:04:30,280 of against intermediate commands we can use inside the Leanness operating system. 49 00:04:30,310 --> 00:04:31,820 So thank you for watching this lecture, guys.