{| border=1

|'''Time'''

|'''Narration'''

|-

|00:00

| '''The Linux Environment''' -

spoken tutorial

|-

|00:07

| working Linux system Ubuntu

Tutorial

|-

|00:13

| Linux operating system start

'''command , file system shell '''

basic idea

|-

|00:22

| concept

, website

spoken tutorial

|-

|00:32

| Tutorial record '''Ubuntu 10.10'''

|-

|00:36

| Linux ''case sensitive'' tutorial

command mention lower case

|-

|00:46

| operating system ,

command ,

action interpret

Linux environment

|-

|00:55

| '''shell''' setting Linux

customize

|-

|00:58

|

shell '''shell

variable '''

|-

|01:04

| shell variable :

'''Environment Variable''' '''Local

Variable'''

|-

|01:12

| Environment variable ,

user environment

|-

|01:19

| '''shell script'''

shell sub-shell

|-

|01:24

| Local Variable , , restricted

limited availability

|-

|01:31

| shell sub-shell

|-

|01:36

| tutorial , environment

variable shell

variable value

|-

|01:48

| current shell variable

command '''set''' run

|-

|01:53

| terminal Type : '''set''' space pipeline

character '''more''' Enter

|-

|02:00

| current shell variables

|-

|02:04

| : '''HOME''' environment variable

, assign value

|-

|02:15

| List '''Enter'''

'''q'''

|-

|02:21

| , variable list systematic multipage

output '''set''' output

'''more''' pipeline

|-

|02:38

| environment variable , '''env'''

command run

|-

|02:45

| terminal Type :'''env''' space 'vertical-bar'

'''more''' Enter

|-

|02:52

| , '''slash bin slash bash''' value

'''SHELL''' variable notice

|-

|03:00

| , list '''q''' press

|-

|03:07

| Linux environment variable

|-

|03:11

| demonstration bash

shell

|-

|03:15

| shell

|-

|03:19

| variable store

, variable dollar sign

command

|-

|03:30

| environment variable

'''SHELL''' variable

|-

|03:35

| current shell store

|-

|03:37

| '''SHELL''' variable value , terminal

type : capital '''echo''' space '''dollar S-H-E-

L-L''' '''Enter'''

|-

|03:55

| , '''slash bin slash bash'''

operate shell

|-

|04:02

| variable '''HOME'''

|-

|04:05

| Linux login ,

user name directory

|-

|04:11

| directory 'home directory' 'HOME'

variable

|-

|04:17

| value , terminal type : '''echo'''

space '''dollar capital H-O-M-E''' '''Enter'''

|-

|04:29

| environment variable '''PATH'''

|-

|04:32

| '''PATH''' variable directory '''absolute

path''' shell

executable command locate

|-

|04:40

| path variable value

|-

|04:43

| , terminal type : '''echo''' space

'''dollar capital P-A-T-H ''' Enter

|-

|04:51

| computer '''slash user slash local

slash sbin slash user slash local slash bin slash user

slash sbin slash user slash bin'''

|-

|05:04

| system

|-

|05:07

| :(colon) delimiter

directory list , order executable

command shell

|-

|05:18

| list directory

directory shell

|-

|05:25

| directory terminal type

:

|-

|05:29

| capital '''P-A-T-H''' 'equal-to' '''dollar

capital P-A-T-H''' ''' colon slash home slash'''

home directory type Enter

|-

|05:54

| '''PATH''' value '''echo'''

,

|-

|06:04

| directory '''PATH'''

variable

|-

|06:10

| directory present

|-

|06:16

| variable '''LOGNAME'''

|-

|06:20

| active user username store

|-

|06:24

| value , type : '''echo''' space

'''dollar LOGNAME''' '''Enter'''

|-

|06:35

| terminal dollar sign

prompt command

enter

|-

|06:42

| environment variable 'PS1' represent

primary prompt string

|-

|06:47

| secondary prompt string

|-

|06:50

| command line

line prompt

greater than sign “>”

|-

|07:00

| environment variable 'PS2' represent

secondary prompt string

|-

|07:05

| secondary command prompt value , terminal

type : '''echo''' space '''dollar PS2'''

'''Enter'''

|-

|07:20

| prompt primary prompt string “at

the rate” <@>

|-

|07:28

| , type ''' PS1''' 'equal-to'

quote 'at the rate' “@" Enter

|-

|07:41

| '''dollar''' sign prompt '''at the

rate''' sign

|-

|07:50

| interesting

prompt username

|-

|07:56

| type : '''PS1''' capital 'equal-to' quote

'''dollar LOGNAME''' '''Enter'''

|-

|08:12

| username prompt

|-

|08:16

| , type : '''PS1''' 'equal-

to' quote dollar Enter

|-

|08:28

| environment variables value assigned

|-

|08:32

| , current

session applicable

|-

|08:37

| PATH variable directory

|-

|08:40

| terminal

terminal

path variable value echo check

,

|-

|09:00

| modification

|-

|09:05

| modification permanent

advanced tutorial covere

|-

|09:13

| command re-execute

execute

command type

|-

|09:22

| , solution

|-

|09:26

| , keyboard 'up key'

type command

|-

|09:33

| command

scrolling

|-

|09:37

| down key

|-

|09:42

| command scroll

'''history''' command

|-

|09:52

| prompt '''history''' Type

|-

|09:58

| Enter ,

command list

|-

|10:04

| list

,

|-

|10:08

| type '''history space 10''' ''Enter'''

|-

|10:20

| list command

assign ,

|-

|10:27

| command repeat ,

|-

|10:32

| type exclamation mark command

442 case '''echo space

dollar PATH''' execute

|-

|10:51

| command re-execute

exclamation mark type

Enter

|-

|11:03

| 'tilde' substitution

tilde(~) character home directory shorthand

|-

|11:12

| , home directory testtree

directory type

: '''cd''' space '''~(tilde)''' slash

'''testtree'''

|-

|11:25

| current working directory '''cd '~(tilde)'

minus''' '''cd minus''' command

directory toggle

|-

|11:35

| '''testtree''' directory ,

visit directory home

directory

|-

|11:41

| '''cd space minus''' run

Enter , home directory

|-

|11:47

| Run

'''testtree''' directory

|-

|11:55

| command

'''alias''' command

|-

|11:59

| run

command

|-

|12:04

| '''alias''' name

'''alias''' name

|-

|12:11

| music visit

directory hierarchy ,

alias

|-

|12:20

| Type : '''alias''' space '''cdMusic''' 'equal-

to' double quote '''cd space slash home slash

arc slash files slash entertainment slash music'''

Enter

|-

|12:47

| directory switch

'''cdMusic''' Enter

|-

|12:55

| '''music''' directory

|-

|12:58

| , working directory

prompt '''cd space minus ''' type

|-

|13:08

| '''alias''' unset , '''unalias space

cdMusic''' Enter

|-

|13:20

| terminal '''cdMusic'''

fire , command error

|-

|13:30

| present working directory '''test1'''

'''test2''' file

|-

|13:38

| '''rm test1''' fire ,

'''test1''' silently delete

|-

|13:45

| '''rm''' command '''hyphen i'''

option removal process interactive

|-

|13:52

| '''alias''' '''alias rm'''

equal-to, quote '''rm space hyphen

i''' set

|-

|14:03

| '''rm''' run , '''rm

hyphen i''' run

|-

|14:13

| '''test1''' silently delete ,

'''test2''' delete system

|-

|14:20

| , tutorial '''environment variables''',

'''history''' '''aliasing'''

|-

|14:25

| tutorial

|-

|14:28

| '''Spoken Tutorial''' project '''Talk to a

Teacher''' project , ICT National

Mission on Education

|-

|14:36

| mission - website

|-

|14:39

| tutorial Script

|-

|14:42

| IIT MUMBAI

|}