WEBVTT 00:00.730 --> 00:01.810 Hello, my name is Typhoon. 00:01.810 --> 00:03.880 Welcome to another lecture of our course. 00:03.880 --> 00:07.810 In this lecture you will learn about the permission attribute examples. 00:07.810 --> 00:13.320 So let's get started with the regular file that is readable, writable and executable by the file's 00:13.330 --> 00:16.630 owner and no one else has any access. 00:16.630 --> 00:21.820 So in this case, the as you remember, the file starts with this attribute. 00:21.820 --> 00:29.170 And after that we will w r, w, x, and then here with three, three and three, three, three. 00:30.730 --> 00:31.000 Here. 00:31.000 --> 00:31.660 That's it. 00:31.700 --> 00:37.540 This with files that has this permission is a regular file. 00:38.260 --> 00:45.790 Is readable, writable and executable by the file's owner, only the file's owner and no one else. 00:45.790 --> 00:49.480 No group, no everyone has any access. 00:49.480 --> 00:50.830 So here. 00:53.220 --> 00:53.640 Actually. 00:53.640 --> 00:53.910 Yeah. 00:54.450 --> 00:54.870 Here. 00:54.870 --> 00:56.820 So now let's create another here. 00:56.820 --> 01:01.230 So this is a regular file as this implies. 01:01.260 --> 01:05.070 After that, our W here. 01:08.170 --> 01:08.830 That's it. 01:08.830 --> 01:11.140 So guess what it is. 01:11.170 --> 01:19.990 So this is the regular file that is readable and writable by the file's owner, but no one else has 01:19.990 --> 01:20.950 any access. 01:20.950 --> 01:26.560 So in previous we also had this executable executable which we can execute, but in this case we cannot 01:26.560 --> 01:26.920 execute. 01:26.920 --> 01:31.210 But we can only read and write onto this file. 01:31.210 --> 01:33.010 So let's create another example here. 01:33.010 --> 01:35.230 So this is also a regular file. 01:36.130 --> 01:45.220 RW With read and file by the owner and read by the group and also read by the everyone else. 01:45.550 --> 01:49.120 So this is a regular file that is. 01:49.770 --> 01:53.130 Readable and writable by the file's owner. 01:53.160 --> 01:56.610 Regular file is this readable and writable by File's owner. 01:57.030 --> 02:01.740 Members of the file's owner may read the file. 02:02.620 --> 02:06.280 And the file is also world readable. 02:06.280 --> 02:08.200 So let's actually create another text. 02:08.230 --> 02:09.100 Text here. 02:09.100 --> 02:11.530 So this is also a regular file. 02:12.580 --> 02:18.610 RW rw and RW here and. 02:19.440 --> 02:20.250 That's it. 02:20.370 --> 02:26.130 So as with previous examples, this is also regular file. 02:26.730 --> 02:30.120 Regular file that is readable. 02:30.150 --> 02:31.500 Writable. 02:33.290 --> 02:36.290 Readable and writable by File's owner. 02:37.530 --> 02:40.950 And the member also the members of the file. 02:40.950 --> 02:45.450 So it's also the readable and writable for members of the file group only. 02:45.450 --> 02:49.280 And not everyone else cannot access this file. 02:49.290 --> 02:51.390 So let's create another example now. 02:52.230 --> 02:53.970 Let's create a symbolic link, Right? 02:54.000 --> 03:00.360 Or let's first create two directories and lastly, create symbolic link for us. 03:00.660 --> 03:01.320 That's it. 03:01.350 --> 03:01.980 Here. 03:04.960 --> 03:06.720 So let's create a directory. 03:06.730 --> 03:10.190 So d as you as you learned in previous lecture. 03:10.210 --> 03:13.270 D means that it's a directory. 03:13.270 --> 03:20.380 So that's actually rw x rw x and not everyone else. 03:20.380 --> 03:28.810 So this is a directory The owner and the member of the owner group may enter the directory, create, 03:28.840 --> 03:32.140 rename and remove files within the directory. 03:32.140 --> 03:37.120 But no, everyone else does not have access to it. 03:37.120 --> 03:39.400 So let's create another directory example here. 03:39.400 --> 03:47.590 So d, r or D this is a directory rw x r and after that. 03:48.840 --> 03:49.380 Actually. 03:49.530 --> 03:50.150 Yeah. 03:50.910 --> 03:51.850 And here. 03:51.870 --> 03:52.860 So that's it. 03:53.340 --> 04:00.960 As the name implies, the first attribute is a directory, and the owner may enter the directory, create, 04:00.990 --> 04:03.840 rename, and delete files within the directory. 04:03.840 --> 04:12.210 And members of or members of the owner group may enter the directory but cannot create, delete or rename 04:12.210 --> 04:12.840 files. 04:12.840 --> 04:15.270 So they the rename files. 04:15.270 --> 04:16.440 So they enter. 04:16.440 --> 04:24.720 But as the W here implies, they cannot create, delete or rename files and everyone else cannot. 04:24.840 --> 04:26.970 Does not has access to it.