1
00:00:00,000 --> 00:00:04,400
[Intro Music]

2
00:00:04,470 --> 00:00:06,720
Hi, guys. So now let's proceed. And

3
00:00:06,780 --> 00:00:08,940
in this and next few lectures, I'll

4
00:00:08,940 --> 00:00:10,980
explain you how to perform user

5
00:00:10,980 --> 00:00:13,830
management in Linux systems. And

6
00:00:13,860 --> 00:00:15,660
I'll explain you how to create new

7
00:00:15,660 --> 00:00:18,330
users, how to login under new users,

8
00:00:18,540 --> 00:00:20,940
and how to create files as new

9
00:00:20,940 --> 00:00:23,400
users. Also, I'll explain you how

10
00:00:23,400 --> 00:00:25,740
to change permissions and ownership

11
00:00:25,770 --> 00:00:28,170
of the files. But first of all, let

12
00:00:28,170 --> 00:00:30,570
me answer the question, why users

13
00:00:30,600 --> 00:00:32,580
are actually needed in Linux

14
00:00:32,580 --> 00:00:34,980
systems? You already know that

15
00:00:35,010 --> 00:00:37,350
there is a so called a root user.

16
00:00:37,470 --> 00:00:39,690
And as the root user, you are able

17
00:00:39,720 --> 00:00:41,820
to perform some management tasks

18
00:00:41,850 --> 00:00:44,280
and launch different scripts. And

19
00:00:44,280 --> 00:00:46,560
usually, regular users aren't able

20
00:00:46,560 --> 00:00:48,660
to do so. And in this Linux

21
00:00:48,660 --> 00:00:51,090
container, I am logged in currently

22
00:00:51,120 --> 00:00:54,314
as root user, and if I enter 'whoami',

23
00:00:54,314 --> 00:00:55,770
I will see this information

24
00:00:55,770 --> 00:00:58,710
here. And default home

25
00:00:58,710 --> 00:01:00,930
directory for this 'root' user is

26
00:01:00,960 --> 00:01:04,379
'/root'. And if I enter 'pwd', I

27
00:01:04,379 --> 00:01:06,930
see that I'm inside of the root

28
00:01:07,140 --> 00:01:09,450
folder, and this folder is home

29
00:01:09,480 --> 00:01:11,580
directory for this 'root' user. And

30
00:01:11,580 --> 00:01:13,680
here you see this tilde(~) sign that

31
00:01:13,680 --> 00:01:15,870
actually represents home directory

32
00:01:15,900 --> 00:01:18,720
for a specific user. Also, I have

33
00:01:18,720 --> 00:01:20,460
shown you in this virtual machine

34
00:01:20,640 --> 00:01:23,370
that I was working here in this

35
00:01:23,370 --> 00:01:25,320
terminal and in this graphical user

36
00:01:25,320 --> 00:01:27,660
interface as regular 'bogdan'

37
00:01:27,690 --> 00:01:30,720
user. And if I enter 'whoami' here,

38
00:01:30,780 --> 00:01:33,510
I see 'bogdan'. And if I 'cd'

39
00:01:33,540 --> 00:01:36,210
to home directory, 'cd~', and

40
00:01:36,210 --> 00:01:38,970
enter 'pwd', I will see that the home

41
00:01:38,970 --> 00:01:41,370
directory for this regular user is

42
00:01:41,400 --> 00:01:44,670
'/home/bogdan'. Alright,

43
00:01:44,820 --> 00:01:46,740
that's quick introduction. And now

44
00:01:46,740 --> 00:01:48,690
let's move on and let's create a

45
00:01:48,840 --> 00:01:51,150
new user here in this Docker

46
00:01:51,150 --> 00:01:53,010
container. I will see you guys in

47
00:01:53,010 --> 00:01:54,358
the next lecture. Bye-Bye.

48
00:01:54,358 --> 00:01:56,822
[no audio]