1 00:00:00,210 --> 00:00:00,940 Hi, everyone. 2 00:00:01,440 --> 00:00:08,970 As we all know that we have done with a fine come on now it's time to see modifying files and directories. 3 00:00:09,300 --> 00:00:16,640 So when you have found your file and directories now, you'll want to be able to perform Xs on them. 4 00:00:17,100 --> 00:00:24,390 So in upcoming lectures, we look at how to create files and directories, copy files, rhenium files 5 00:00:24,390 --> 00:00:26,170 and delete files and directories. 6 00:00:26,640 --> 00:00:29,900 So first of all, we are going to learn about creating files. 7 00:00:29,900 --> 00:00:32,460 So there are many ways to create file. 8 00:00:32,460 --> 00:00:36,920 Ingenix, but for now we will just look at two simple matter. 9 00:00:37,290 --> 00:00:41,450 The first one this guy got does nothing but concatenated. 10 00:00:41,790 --> 00:00:49,950 So the meaning of concatenation is just to combine pieces together so that Katka Mind is generally used 11 00:00:49,950 --> 00:00:52,290 for displaying the contents of a file. 12 00:00:52,680 --> 00:00:56,330 But it can also be used to create small files. 13 00:00:56,670 --> 00:01:04,770 So for creating bigger files, it is better to enter the code in a text editor such as Vem Lilypad or 14 00:01:04,770 --> 00:01:07,760 we are having so many, uh, textual data. 15 00:01:08,010 --> 00:01:14,760 So most popular ones are them Alperin leanings and simply save the file. 16 00:01:15,210 --> 00:01:17,120 Sunaj start with the one. 17 00:01:17,130 --> 00:01:22,920 So the concatenation with regard to what does it mean to the cat, go on followed by the filing will 18 00:01:22,930 --> 00:01:25,320 display the contents of the file. 19 00:01:26,190 --> 00:01:31,470 But to create the file, we follow the cat goman with a redirect. 20 00:01:32,010 --> 00:01:39,270 The North that the symbol like OK, God, and this is the closing angle of bracket, this is the redirect 21 00:01:39,480 --> 00:01:42,200 and the name of the file we want to create. 22 00:01:42,480 --> 00:01:45,030 So I want to create hogging file. 23 00:01:47,250 --> 00:01:53,450 Not hacking or hacking is very familiar names, so I'm going to give it hacking. 24 00:01:54,060 --> 00:01:56,670 So after this, when you enter. 25 00:01:58,190 --> 00:01:58,700 OK. 26 00:02:01,660 --> 00:02:09,400 So when you enter, this will go into intractable mode and wait for you to start entering the content 27 00:02:09,400 --> 00:02:14,250 of the file so this can be puzzling because the promotion disappears. 28 00:02:14,260 --> 00:02:18,980 But if you simply begin typing, whatever you enter will go into the file. 29 00:02:19,390 --> 00:02:21,100 Suppose I'm entering here. 30 00:02:21,370 --> 00:02:22,180 Hacking. 31 00:02:23,920 --> 00:02:29,410 As the most demanding a girl. 32 00:02:31,540 --> 00:02:32,400 Of the. 33 00:02:33,640 --> 00:02:43,120 21ST century and what I need to do is to exit and to return, to promote what I need to do is simply 34 00:02:43,120 --> 00:02:48,050 control be now and OK. 35 00:02:50,880 --> 00:02:56,850 OK, so now if you want to see the content of the file, what they need to do is gag. 36 00:02:57,760 --> 00:03:05,320 Hockey filename and so of dating entry, as you can see, that we are done with the adding text into 37 00:03:05,320 --> 00:03:09,680 the file, which is hacking is the most demanding skill of 21st century. 38 00:03:10,240 --> 00:03:16,090 So if you do not use the redact symbol, salinity's will spit back the content of your file. 39 00:03:16,660 --> 00:03:24,280 So to add or append more content to a file, you can use the get go on with the drop a double redirect 40 00:03:24,580 --> 00:03:25,000 devilry. 41 00:03:25,000 --> 00:03:31,040 That means gagged, testable, redacted, and the filing which is hacking and enter. 42 00:03:31,420 --> 00:03:38,200 So after this, everyone of lone. 43 00:03:39,780 --> 00:03:43,690 Hocking sword alone hocking. 44 00:03:43,860 --> 00:03:50,240 OK, so after this, simply what you need to do, it is simply does do this. 45 00:03:50,250 --> 00:03:53,760 And again, if you want to see the content gap hacking. 46 00:03:55,300 --> 00:03:56,380 OK, what? 47 00:03:57,830 --> 00:03:58,150 OK. 48 00:03:58,200 --> 00:04:04,790 Something went wrong, OK, let me do it again now every. 49 00:04:05,810 --> 00:04:10,600 Everyone should learn hiking, OK? 50 00:04:12,300 --> 00:04:13,320 Is this clear? 51 00:04:14,710 --> 00:04:15,130 Now. 52 00:04:16,150 --> 00:04:19,050 Let's try let's see the content. 53 00:04:20,750 --> 00:04:27,350 Now, as you can see, that we are done with the content, so suppose that, OK, first of all, let's 54 00:04:27,350 --> 00:04:27,980 talk about this. 55 00:04:27,980 --> 00:04:34,910 So we are able to add one more line into a file, which is everyone should learn hacking and hacking 56 00:04:34,910 --> 00:04:36,720 is the most demanding skill of 21st century. 57 00:04:36,980 --> 00:04:45,470 OK, suppose that, guys, if you you want to read the file with the information so you can simply use 58 00:04:45,470 --> 00:04:47,910 the card combined with a single redirect again. 59 00:04:48,260 --> 00:04:49,790 So how you can do that. 60 00:04:50,170 --> 00:04:52,550 OK, so how you can do that. 61 00:04:52,550 --> 00:05:01,420 Simply used that hacking file name to write it and simplify it enters into that. 62 00:05:01,430 --> 00:05:03,230 I want to like uh. 63 00:05:06,310 --> 00:05:09,380 It is the future. 64 00:05:10,120 --> 00:05:11,300 It is the future. 65 00:05:11,770 --> 00:05:14,690 Now, let me do it now. 66 00:05:14,720 --> 00:05:15,310 Guard. 67 00:05:18,050 --> 00:05:24,430 Guard and finally, which is hacking ahead, and as you can see, that we are able to change. 68 00:05:24,590 --> 00:05:25,270 All right. 69 00:05:25,550 --> 00:05:27,530 What was inside the file? 70 00:05:28,130 --> 00:05:29,080 Oh, OK. 71 00:05:29,390 --> 00:05:30,530 So it is now. 72 00:05:30,560 --> 00:05:31,830 It is the future. 73 00:05:31,850 --> 00:05:34,490 So this is how you can work with this. 74 00:05:34,820 --> 00:05:43,260 So what we have learned we are we have learned how to create file using get how to add content inside 75 00:05:43,260 --> 00:05:45,710 there to using cat hacking. 76 00:05:46,220 --> 00:05:47,330 OK, so OK. 77 00:05:47,570 --> 00:05:52,430 So with the help of this you can create file and you can add content inside this with the help of cat 78 00:05:52,430 --> 00:05:57,920 hacking, you can display, you can see or display the content present inside this particular file if 79 00:05:57,920 --> 00:06:04,730 you want supposed if you want to add more layers, you can use the redirect symbol and you can see with 80 00:06:04,730 --> 00:06:10,580 the help of this and suppose that you want to write it so you can use the same command. 81 00:06:10,760 --> 00:06:16,760 OK, hacking, redirect singlehood addict and hacking or cat single and hacking like this. 82 00:06:17,090 --> 00:06:23,300 OK, so one more one that is very useful to create the file, which is touch. 83 00:06:23,660 --> 00:06:31,430 So this one was originally developed so a user could simply touch a file to change some of its details, 84 00:06:31,430 --> 00:06:34,360 such as the date it was created or modified. 85 00:06:34,670 --> 00:06:40,910 However, if the file doesn't already exist, this command could use that file by default. 86 00:06:41,180 --> 00:06:42,410 So this is like. 87 00:06:43,630 --> 00:06:50,530 It is not meant for creating fight, but if the file is not present, it will create and evolve new 88 00:06:50,530 --> 00:06:51,200 file for you. 89 00:06:51,520 --> 00:06:58,910 So how you can create the file, you need to simply touch on new file. 90 00:06:59,230 --> 00:07:06,210 This is how you can do this now or let me do it like I know how to enter software. 91 00:07:06,370 --> 00:07:12,940 And as you can see, that file now do so after doing Ellers, as you can see that this is nothing wordlist. 92 00:07:13,330 --> 00:07:19,330 So you can see that we have successfully created the file which we have given there. 93 00:07:19,990 --> 00:07:21,520 Now we are having those files. 94 00:07:21,520 --> 00:07:26,520 We are able to uh, now let's see the content inside the file. 95 00:07:27,220 --> 00:07:30,110 We are having nothing inside this particular file. 96 00:07:30,550 --> 00:07:37,180 So this is how you can work with this and this is how you can create any particular file. 97 00:07:38,170 --> 00:07:46,130 So in the next lecture, we are going to see how to create a Badagry, which is very important to none. 98 00:07:46,600 --> 00:07:48,670 So this is all for this lecture, guys. 99 00:07:48,670 --> 00:07:50,080 I hope you guys enjoyed it. 100 00:07:50,320 --> 00:07:52,260 And thank you for watching this lecture.