WEBVTT 00:00.970 --> 00:08.270 Compressing and archiving hecklers often need to download and install new software, as well as send 00:08.290 --> 00:11.050 and download multiple scripts and the large files. 00:11.860 --> 00:18.100 These tasks are easier if they these files are compressed and combined into a single file. 00:18.520 --> 00:24.940 If you come from the Windows Phone, you'll probably recognize the concepts concept from the zip format, 00:25.690 --> 00:32.200 which combines and compresses files to the to make them similar for transferring over the internet or 00:32.200 --> 00:33.220 removable media. 00:33.730 --> 00:40.330 So there are many ways to do this in Linux, and we look at five of the most common tools for doing 00:40.660 --> 00:41.770 so in this nature. 00:42.340 --> 00:49.510 So we'll also look at the deeded command, which allows you to copy entire drives, including collected 00:49.510 --> 00:53.500 files onto its drivers, natural drives and drivers. 00:54.070 --> 00:55.510 So what is compression? 00:56.050 --> 01:00.850 So the interesting subject of compression called feel an entire course by itself. 01:01.180 --> 01:05.470 But for this course, you only need a rudimentary understanding of the process. 01:06.460 --> 01:13.300 The compression, as the name implies, makes data smaller, thereby requiring less storage capacity 01:13.300 --> 01:18.430 and making the data easier to transmit for your purposes as beginning kicker. 01:18.520 --> 01:24.520 It was selfish to categorize compression as a either loosey or lossless. 01:24.910 --> 01:32.170 So loosely compression is very effective in reducing the size of files, but the integrity of the information 01:32.170 --> 01:32.710 is lost. 01:33.130 --> 01:37.720 So in other words, the file after compression is not exactly the same as the original. 01:38.170 --> 01:45.520 So this type of compression works great for graphics, video and audio files, where a small difference 01:45.520 --> 01:56.530 in the files hardly noticeable like an input three in before and and jpg AGP age are also all loosely 01:56.530 --> 01:58.900 compression compression algorithms. 01:59.560 --> 02:07.960 So if a pixel in a pinned file or a single note in a puppetry file is changed, your E or EHR is likely 02:07.960 --> 02:08.980 to notice a difference. 02:09.740 --> 02:17.320 Of course, music efficiencies will say that they can definitely tell the difference between an empathy 02:17.320 --> 02:19.710 and uncompressed FLAC file. 02:20.200 --> 02:26.470 So this strength of losing commercials, ah um, its efficiency and effectiveness. 02:26.470 --> 02:29.020 But the compression radio is very high. 02:29.050 --> 02:34.600 The meaning that the uh, resulting file is significantly smaller than the original. 02:35.080 --> 02:42.450 However, elusive compression is unacceptable when you are sending files or software and data integrity 02:42.460 --> 02:42.970 support. 02:43.300 --> 02:48.820 For example, if you're sending a script or a document, the integrity of the original file must be 02:48.820 --> 02:50.740 retained when it is compressed. 02:51.190 --> 02:56.980 So this letter focused on the lossless type of compression, which is available for a number of utilities 02:56.980 --> 02:57.850 and algorithms. 02:58.330 --> 03:05.140 Unfortunately, this compression is not as efficient as oluchi compression as you might imagine. 03:05.170 --> 03:11.290 Uh, for but for D.A. integrity is often far more important than the compression ratio. 03:12.940 --> 03:14.700 To bring us together. 03:16.330 --> 03:24.340 So usually the first thing you do when competition crawls is to combine them into an archive. 03:24.520 --> 03:30.630 In most cases when archiving files, you will use a task command here. 03:31.750 --> 03:32.260 So. 03:36.110 --> 03:39.320 And it's open here, so you will use TerraCom month. 03:39.530 --> 03:42.380 So Tash stands at heart here. 03:42.590 --> 03:46.660 So Tash stands save Archi here. 03:47.630 --> 03:48.200 So. 03:49.350 --> 03:55.810 A reference for the prehistoric days of computing, when systems used tape to store data is mysterious. 03:56.230 --> 04:03.800 So the Turkoman creates a single file from many files, which is then referred to as an archive terrifying 04:03.820 --> 04:04.930 or terrible. 04:05.620 --> 04:12.160 For instance, you say you had three scripts files like the here, for example. 04:12.760 --> 04:13.300 Um? 04:15.520 --> 04:16.700 Torch here. 04:19.010 --> 04:19.860 How chair. 04:22.250 --> 04:34.010 For example, pick beans, one that see her share pouch, take beans, one tool that python here take 04:34.490 --> 04:36.680 and actually touch. 04:37.370 --> 04:43.010 Take beans at three that year, for example out you. 04:45.670 --> 04:48.360 As you can see, we files, but they are important for us. 04:49.530 --> 04:49.920 So. 04:51.760 --> 04:59.230 If you never get a director that holds them know and perform and a long listing, you can clearly see 04:59.230 --> 05:05.470 the files and details you'd expect so including the size of the files here, as you can see here. 05:08.480 --> 05:09.560 It was a. 05:11.130 --> 05:16.890 You know, actually, you know, this is a page, so as you can see, we've created three four and it's 05:16.890 --> 05:25.230 actually copied them to folders here and this change it with our text editor. 05:25.890 --> 05:29.930 Actually, it's, uh, example here. 05:30.610 --> 05:35.910 And let's cope with this here and here. 05:35.940 --> 05:39.050 It's open here and then, uh, put inside them themselves. 05:39.450 --> 05:43.260 Something here, uh, just an example. 05:43.270 --> 05:45.420 See hash file here. 05:47.750 --> 05:50.520 Here, as you can see, we creative loving it. 05:53.020 --> 05:53.380 Here. 05:54.830 --> 05:56.900 And let's open this as well. 05:57.140 --> 05:57.710 Um. 05:59.060 --> 06:01.250 Uh, my phone. 06:01.490 --> 06:02.540 Wow, here. 06:05.060 --> 06:05.510 Here. 06:13.870 --> 06:26.120 So you can see here and let's open here and, uh, just start out while some clients use this or say, 06:26.960 --> 06:34.850 uh, compliant comp. See scripts here or programs their homes their. 06:44.840 --> 06:45.060 Yeah. 06:46.250 --> 06:47.480 It's uh. 06:49.200 --> 06:55.680 As you can see here, we have a new example find here. 06:56.100 --> 06:58.080 So I see the example here. 06:59.110 --> 07:04.270 And less and less in here, as you can see here, there is a different ones. 07:04.930 --> 07:12.610 So let's say you want to send all three of these files to another hacker you are working with on a project 07:13.090 --> 07:23.790 so you can combine them and create a single shot archive file using Takam month here to see who we have. 07:24.410 --> 07:29.980 So we are entering the name of our file here. 07:30.280 --> 07:37.630 Take this project that tower here and we are assigning our files here without coming here. 07:38.020 --> 07:40.150 So no first come here. 07:40.390 --> 07:41.380 Take me one. 07:41.380 --> 07:49.180 See how much take means three out here and take bins to Python here. 07:55.170 --> 07:59.460 As you can see here, we compiled we create a tar file. 07:59.730 --> 08:03.750 So let's break down this command to a better understanding. 08:04.440 --> 08:11.360 So the archiving command is a task and we are using it here with three options, as you can see here. 08:12.860 --> 08:13.280 So. 08:15.730 --> 08:26.320 The sea option here means Crete v Um, which stands for rebels and is optional, you can. 08:26.770 --> 08:36.130 It's not mandatory here, so it's for outputting these files, which is created in tar files and if. 08:36.130 --> 08:37.120 Com month here. 08:38.480 --> 08:41.690 Um, means write the following file here. 08:43.640 --> 08:47.210 So they're the last option will also work for reading from files. 08:47.440 --> 08:54.980 And then we give the new archive the time the file name you want to create from three scripts here. 08:54.980 --> 09:00.500 As you can see here, we named it the take bins project here Tosh. 09:01.160 --> 09:11.240 Of course, in the fall, this command will take all three files here and create a single file so he 09:11.240 --> 09:15.590 can hear bins predictions project tar out of them. 09:15.590 --> 09:22.640 So when you do another long listing of the directory, you will see that it also contains a neutron 09:22.640 --> 09:23.350 file here. 09:24.910 --> 09:25.870 So you can see here. 09:27.060 --> 09:30.330 So not the size of the tar ball is here. 09:30.780 --> 09:32.520 Uh, thirteen. 09:32.730 --> 09:36.600 Uh, three nine three nine nine three eight six zero here. 09:37.410 --> 09:37.920 So. 09:39.300 --> 09:43.850 When the three of us are archived 30 years of significant overhead to perform this operation. 09:44.210 --> 09:50.120 Whereas a sum of us before archiving careless, calculated, uh, calculated. 09:52.010 --> 09:55.520 Here, so we will calculate this train was here. 09:56.000 --> 09:57.290 Uh, let's see it. 09:59.390 --> 10:00.800 The first take this one. 10:02.390 --> 10:04.700 See how Shear Plus. 10:06.920 --> 10:12.050 Uh, three one, it makes three here plus. 10:13.150 --> 10:18.100 Lastly, is around five, three, five seven. 10:19.300 --> 10:19.960 Three. 10:21.520 --> 10:22.810 Zero four. 10:24.240 --> 10:31.410 As you can see here, our time for is three, nine, three nine, four six here. 10:31.950 --> 10:40.530 So but in here three nine three three nine nine three six zero so this tarball, uh, here actually. 10:40.950 --> 10:47.310 So this is a greater than so this is greater than our total of some of this fires. 10:48.330 --> 10:48.750 So. 10:50.230 --> 10:54.580 In other words, the archiving process has added almost. 10:59.170 --> 11:01.270 Well, it's minus here. 11:02.880 --> 11:03.190 Or. 11:06.090 --> 11:06.510 Here. 11:09.110 --> 11:09.830 Minus. 11:11.120 --> 11:14.510 Uh, three, nine, nine, three, six zero here. 11:15.350 --> 11:22.460 So as you can see in the process is on the almost, uh, five thousand four hundred, uh, fourteen 11:22.790 --> 11:23.660 by storing it. 11:24.350 --> 11:30.290 So out of this horrid canvassing inefficient with small files, it becomes less and less significant 11:30.290 --> 11:32.870 with a larger and larger fires. 11:33.170 --> 11:33.650 So we can. 11:33.650 --> 11:40.070 This will reduce fires from the tarball without extracting them by using the tower command within them 11:40.860 --> 11:42.190 to on the list. 11:42.760 --> 11:49.640 Switch here Taj T we fear here and take things project here. 11:50.150 --> 11:52.100 Actually, let's see how many minutes we have. 11:52.100 --> 11:52.330 Yes. 11:53.060 --> 11:54.830 So can you see it's actually yes. 11:55.430 --> 11:55.760 So. 11:56.750 --> 12:04.170 Here we see our three audio files and their original sizes, so you can then extracted his files from 12:04.170 --> 12:10.820 the Kamaal using Takam, which within the UK's extracts image, as shown here, for example, Taj x 12:10.820 --> 12:12.680 WiFi here. 12:14.660 --> 12:17.420 X x, we fear here. 12:17.570 --> 12:19.730 Let's first A. L. A. Here. 12:20.060 --> 12:29.980 So now task for comprehensive case files here takes me three here and thickens project to cancer. 12:29.990 --> 12:31.790 We expect that these files see it. 12:36.330 --> 12:36.810 Here. 12:37.760 --> 12:39.290 So we expected this for us. 12:39.620 --> 12:47.900 So it's the latest finds there, and I will say that here, as you can see here, we extracted these 12:47.900 --> 12:51.920 files from Take this project a terrifying thing and as you can see here. 12:52.890 --> 12:54.780 So here, no. 12:55.920 --> 13:03.690 Because you are still using the vene, uh, sewage it is come on the show, which files are being extracted 13:03.690 --> 13:04.820 in the output here. 13:05.610 --> 13:12.450 If you want to extract the files and to do so slice slightly meaning without showing any output, you 13:12.450 --> 13:18.750 can simply remove these V, which has been, uh, available for comment and some share. 13:19.280 --> 13:20.070 So. 13:21.270 --> 13:30.660 Here, excessive and nothing outward, but our fans still expect that soon the files have been extracted 13:30.660 --> 13:36.720 into the current directory, you can do a long listing on a die on the directory to double check so 13:37.010 --> 13:43.200 that by default, if an extracted file under the excess tar will remove the existing file and replace 13:43.200 --> 13:44.730 it with the extract file here. 13:47.500 --> 13:52.870 So in later lecture, we will uh, I will show you, uh, compressing the fire, so I'm waiting you 13:52.870 --> 13:53.770 in there to lecture.