Difference between revisions of "Advance-C/C2/Command-line-arguments-in-C/English-timed"
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PoojaMoolya (Talk | contribs) (Created page with " {| Border = 1 ! <center>Time</center> ! <center>Narration</center> |- | 00:01 |Hello and welcome to the spoken tutorial on''' Command Line Arguments.''' |- | 00:07 |In this...") |
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|You can see the output as: | |You can see the output as: | ||
'''Total number of arguments are 1 ''' | '''Total number of arguments are 1 ''' | ||
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'''The first argument is null ''' | '''The first argument is null ''' | ||
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'''arguments are ./args ''' | '''arguments are ./args ''' | ||
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|Now we can see the output: | |Now we can see the output: | ||
'''Total number of arguments are 4 ''' | '''Total number of arguments are 4 ''' | ||
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'''The first argument is Sunday ''' | '''The first argument is Sunday ''' | ||
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'''Argument are ./args ''' '''Sunday Monday ''' and '''Tuesday '''. | '''Argument are ./args ''' '''Sunday Monday ''' and '''Tuesday '''. | ||
Revision as of 11:38, 20 November 2015
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| 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 | Filename 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-
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| 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+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 | Arguments are only one ie. dot slash args |
| 03:31 | Now let us execute again |
| 03:34 | Press the uparrow 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 Argument 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 zeroeth argument always gives executable filename. |
| 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,
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| 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 summarises 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: http://spoken-tutorial.org\NMEICT-Intro |
| 05:36 | This is Ashwini Patil from IIT Bombay signning off.
Thank you for joining. |
