Difference between revisions of "Advance-C/C2/Command-line-arguments-in-C/English-timed"

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{| Border = 1
 
{| Border = 1
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! <center>Time</center>
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| '''Time'''
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! <center>Narration</center>
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|'''Narration'''
  
 
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|-
 
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| 00:07
 
| 00:07
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|In this tutorial, we will learn about  '''main''' function with '''arguments''', with an example.
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|In this tutorial, we will learn about  '''main()''' function with '''arguments''', with an example.
  
 
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| 00:45
 
| 00:45
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|Filename is ''''main hyphen with hyphen args.c''''.
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|File name is '''main hyphen with hyphen args.c'''.
  
 
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| 01:01
 
| 01:01
 
|'''stdlib.h header file''' defines-
 
|'''stdlib.h header file''' defines-
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* '''Numeric conversion function'''
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'''Numeric conversion function'''
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* '''Pseudo-random numbers'''
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'''Pseudo-random numbers'''
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* '''Generation function'''
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'''Generation function'''
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* '''Memory allocation'''
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'''Memory allocation'''
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* '''Process control functions'''.
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'''Process control functions'''.
  
 
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|-
 
|01:16
 
|01:16
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|This is our ''''main' function.''' Inside this, we have passed two '''arguments'''-
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|This is our '''main()''' function. Inside this, we have passed two arguments-
 
'''int argc,  char  asterisk asterisk argv''' (**argv).
 
'''int argc,  char  asterisk asterisk argv''' (**argv).
  
 
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| 01:28
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|'''“argc”''' refers to the number of '''command line arguments''' passed to the program.
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| '''argc''' refers to the number of '''command line arguments''' passed to the program.
  
 
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| 01:38
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|'''argv''' contains actual '''arguments''' starting from '''index 0'''.
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|'''argv''' contains actual '''argument'''s starting from '''index 0'''.
  
 
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|''''while' condition''' will decrement the number of '''arguments'''.
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|''''while' condition''' will decrement the number of arguments.
  
 
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| 02:27
 
| 02:27
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|Let us open the '''terminal''' by pressing '''Ctrl+Alt+T''' keys simultaneously on your keyboard.
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|Let us open the '''terminal''' by pressing '''Ctrl+Alt''' and '''T''' keys simultaneously on your keyboard.
  
 
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|You can see the output as:
 
|You can see the output as:
  
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"Total number of arguments are 1"
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'''"Total number of arguments are 1"'''
 
   
 
   
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"The first argument is null"
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'''"The first argument is null"'''
 
   
 
   
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"arguments are ./args"  
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'''"arguments are ./args"'''
  
 
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|'''The first argument is (null) '''as we have not passed any argument to the program.  
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|'''The first argument is null '''as we have not passed any argument to the program.  
  
 
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| 03:26
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|'''Arguments''' are only one i.e. '''dot slash args'''.
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|'''Argument''' is only one i.e. '''dot slash args'''.
  
 
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| 03:34
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|Press the up-arrow key '''space''' type: '''Sunday space Monday space Tuesday'''. Press '''Enter'''
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|Press the up-arrow key '''space''' type: '''Sunday space Monday space Tuesday'''. Press '''Enter'''.
  
 
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|The first argument is "Sunday".
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|The first argument is '''Sunday'''.
  
 
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| 04:17
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|The zeroth argument always gives executable filename.
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|The zeroth argument always gives executable file-name.
  
 
|-
 
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| 04:22
 
| 04:22
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|"Sunday" is assigned to first argument.
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|'''Sunday''' is assigned to first argument.
  
 
|-
 
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| 04:25
 
| 04:25
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|"Monday" is assigned to second argument.
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|'''Monday''' is assigned to second argument.
  
 
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| 04:28
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|"Tuesday" is assigned to third argument.  
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|'''Tuesday''' is assigned to third argument.  
  
 
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| 04:37
 
|In this tutorial, we learnt:
 
|In this tutorial, we learnt:
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* '''Command line arguments'''
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'''Command line arguments'''
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* '''argc'''
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'''argc'''
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* '''argv'''.
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'''argv'''.
  
 
|-
 
|-
 
| 04:45
 
| 04:45
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|As an assignment, execute the program with different '''arguments'''.
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|As an assignment, execute the program with different '''argument'''s.
  
 
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| 05:02
 
| 05:02
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|The Spoken Tutorial Project team: * Conducts workshops using spoken tutorials.  
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|The Spoken Tutorial Project team: Conducts workshops using spoken tutorials.  
  
 
|-
 
|-
 
| 05:08
 
| 05:08
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|* Gives certificates to those who pass an online test. For more details, please write to '''contact@spoken-tutorial.org'''
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|Gives certificates to those who pass an online test. For more details, please write to '''contact@spoken-tutorial.org'''
  
 
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| 05:30
 
| 05:30
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|More information on this mission is available at: '''http://spoken-tutorial.org\NMEICT-Intro'''.
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|More information on this mission is available at the link shown below: http://spoken-tutorial.org\NMEICT-Intro.
  
 
|-
 
|-
 
| 05:36
 
| 05:36
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|This is Ashwini Patil from IIT Bombay, signning off.
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|This is Ashwini Patil from IIT Bombay, signning off.Thank you for joining.
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Thank you for joining.
+
  
 
|}
 
|}

Latest revision as of 12:17, 22 February 2017

Time Narration
00:01 Hello and welcome to the spoken tutorial on Command Line Arguments.
00:07 In this tutorial, we will learn about main() function with arguments, with an example.
00:15 For this tutorial, I am using Ubuntu Operating system version 11.10 and gcc Compiler version 4.6.1 on Ubuntu.
00:27 To follow this tutorial, you should be familiar with C tutorials.
00:33 If not, for relevant tutorials, please visit our website which is as shown.
00:39 Let us start with our program. I have a code file. I will open it.
00:45 File name is main hyphen with hyphen args.c.
00:50 Let me explain the program.
00:53 These are the header files. stdio.h defines core input and output functions.
01:01 stdlib.h header file defines-

Numeric conversion function Pseudo-random numbers Generation function Memory allocation Process control functions.

01:16 This is our main() function. Inside this, we have passed two arguments-

int argc, char asterisk asterisk argv (**argv).

01:28 argc refers to the number of command line arguments passed to the program.
01:34 This includes the actual name of the program.
01:38 argv contains actual arguments starting from index 0.
01:44 Index 0 is the name of the program.
01:48 Index 1 will be the first argument passed to the program.
01:53 Index 2 will be the second argument passed to the program and so on.
01:59 This statement will display the total number of arguments passed to the program.
02:05 This will display the first argument passed to the program.
02:09 1 represents the argument at index 1.
02:13 'while' condition will decrement the number of arguments.
02:18 This statement will print all the arguments passed to the program.
02:23 At the end, we have return 0 statement.
02:27 Let us open the terminal by pressing Ctrl+Alt and T keys simultaneously on your keyboard.
02:35 Type: gcc space main hyphen with hyphen args.c space hyphen o space args. Press Enter.
02:49 Type: dot slash args. Press Enter.
02:54 You can see the output as:

"Total number of arguments are 1"

"The first argument is null"

"arguments are ./args"

03:06 Command line arguments are given during execution.
03:11 Total number of arguments are 1 as the zeroth argument is the executable filename itself.
03:19 The first argument is null as we have not passed any argument to the program.
03:26 Argument is only one i.e. dot slash args.
03:31 Now let us execute again.
03:34 Press the up-arrow key space type: Sunday space Monday space Tuesday. Press Enter.
03:47 Now we can see the output:

Total number of arguments are 4

The first argument is Sunday

Arguments are ./args Sunday Monday and Tuesday .

04:04 Let me explain the output.
04:06 Total number of arguments are 4 as- ./args, Sunday, Monday and Tuesday.
04:14 The first argument is Sunday.
04:17 The zeroth argument always gives executable file-name.
04:22 Sunday is assigned to first argument.
04:25 Monday is assigned to second argument.
04:28 Tuesday is assigned to third argument.
04:31 This brings us to the end of this tutorial. Let us summarize.
04:37 In this tutorial, we learnt:

Command line arguments argc argv.

04:45 As an assignment, execute the program with different arguments.
04:51 Watch the video available at the link shown below.
04:54 It summarizes the Spoken Tutorial project.
04:57 If you do not have good bandwidth, you can download and watch it.
05:02 The Spoken Tutorial Project team: Conducts workshops using spoken tutorials.
05:08 Gives certificates to those who pass an online test. For more details, please write to contact@spoken-tutorial.org
05:18 Spoken Tutorial Project is a part of the Talk to a Teacher project.
05:22 It is supported by the National Mission on Education through ICT, MHRD, Government of India.
05:30 More information on this mission is available at the link shown below: http://spoken-tutorial.org\NMEICT-Intro.
05:36 This is Ashwini Patil from IIT Bombay, signning off.Thank you for joining.

Contributors and Content Editors

PoojaMoolya, Pratik kamble, Sandhya.np14

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