AmolBrahmankar at 07:11, 29 August 2013

2013-08-29T07:11:41Z

AmolBrahmankar: Created page with ''''Title Of Script: '''Array functions in Perl '''Author:''' Amol Brahmankar '''Keywords:''' Array functions in perl video tutorial. {| style="border-spacing:0;" | style="bo…'

2013-08-27T11:03:46Z

Created page with ''''Title Of Script: '''Array functions in Perl '''Author:''' Amol Brahmankar '''Keywords:''' Array functions in perl video tutorial. {| style="border-spacing:0;" | style="bo…'

New page

'''Title Of Script: '''Array functions in Perl

'''Author:''' Amol Brahmankar

'''Keywords:''' Array functions in perl video tutorial.

{| style="border-spacing:0;"
| style="border-top:0.05pt solid #000000;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| <center>'''Visual Clue'''</center>
| style="border:0.05pt solid #000000;padding:0.097cm;"| <center>'''Narration'''</center>

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Welcome to the spoken tutorial on '''Array Functions''' in '''Perl'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide: Learning Objectives
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In this tutorial, we will learn about '''Array functions''' in '''Perl''', like

# push
# pop
# shift
# unshift
# split
# splice
# join
# sort
# qw

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide: System Requirements
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| I am using '''Ubuntu Linux12.04''' operating system and '''Perl 5.14.2'''

I will also be using the '''gedit '''Text Editor.

You can use any text editor of your choice.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide: Prerequisites
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| You should have basic knowledge of '''Variables, Data Structures & Arrays '''in''' Perl'''

Knowledge of''' Comments, loops and conditional statements''' will be an added advantage'''.'''

Please go through the relevant spoken tutorials on the '''spoken tutorial '''website.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Perl provides certain inbuilt '''functions'''.

These '''functions''' can perform various operations on an '''Array'''.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Let us first learn how to add and remove''' elements''' from last position of an '''Array'''.

This can be done by using;

# '''pop''' '''function''' which removes an '''element''' from the last position of an '''Array'''
# '''push''' '''function''' which adds an '''element''' at the last position of an '''Array'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Terminal

| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Let us understand '''push''' and '''pop''' '''functions''' by using a sample program.

Open the '''terminal''' and type '''gedit perlArray dot pl space ampersand '''

Press''' Enter'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Gedit

'''<nowiki>#!/usr/bin/perl </nowiki>'''

'''@myArray = (1, 2, 3); '''

'''print "Original array: @myArray\n"; '''

'''<nowiki># Insert an element at the last position of an array </nowiki>'''

'''push (@myArray, 4); '''

'''print "New array after pushing 4 into an array: @myArray\n"; '''

'''<nowiki># Remove an element from the last position of an array </nowiki>'''

'''pop (@myArray); '''

'''print "New array after popping element: @myArray\n";'''
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| This will open '''perlArray dot pl''' file in '''gedit.'''

Type the code as shown on the screen

<nowiki><<pause>></nowiki>

Here, we have defined an '''Array '''of length 3.

'''push''' '''function''' will insert an '''element''' at the last position of this '''Array''' i.e after 3<nowiki>;</nowiki>

wheras, '''pop function '''will remove an '''element''' from the last position of the '''Array'''.

In our case, '''4''' will be removed from the '''Array'''.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"|
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Press '''Ctrl + S '''to save the file.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide'''

| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Let me explain the syntax of '''push function-'''

# '''1st argument '''to the '''push function '''is the '''Array''' in which to add an''' element.'''
# '''2nd argument '''is the''' element '''which is''' '''to be '''pushed''' into the '''Array.'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide'''
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| The syntax of '''pop function '''is as follows -

* '''pop function''' takes only one''' argument'''
* It is the '''Arrayname '''from which an '''element '''needs to be removed.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide'''
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''Note:'''

Both these functions works at '''last position''' of an '''Array.'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide'''
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| The '''element''' removed by '''pop''' '''function''' can be collected into another '''variable.'''

The syntax for this is -

'''$variable = pop(@myArray)'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Switch to terminal

'''perl perlArray.pl'''

| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now switch to the '''terminal '''and '''execute '''the '''Perl script'''.''' '''

Type '''perl perlArray dot pl '''and press''' Enter.'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Highlight the output on the terminal

Original array: 1 2 3

New array after pushing 4 into an array: 1 2 3 4

New array after popping element: 1 2 3
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| The output is shown on the '''terminal.'''

'''Original array '''

'''New array after pushing 4 into an array'''

'''New array after popping element'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now, let us see how to add/remove an '''element '''from the '''1st position''' of an '''Array.'''

This can be achieved using-

# '''unshift function - '''which adds an''' element '''to an '''Array''' at the 1st position
# '''shift function''' - which removes the<br/> first''' element '''from an '''Array.'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Gedit
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Let us understand this using a sample program.

I will open '''perlArray dot pl '''file which I have already created.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Gedit

'''<nowiki># Insert an element at the first position of an array </nowiki>'''

'''unshift (@myArray, 0); '''

'''print "Array after adding 0 into an array at 1st position: @myArray\n"; '''

'''<nowiki># Remove an element from the first position of an array </nowiki>'''

'''shift (@myArray); '''

'''print "Array after removing element from 1st position: @myArray\n";'''
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Type the following piece of code as shown on the screen.

'''unshift '''function will insert''' '''an '''element '''at the''' '''first''' '''position

i.e before 1

'''shift '''function will remove''' '''an''' element '''from the''' '''first position.

In our case,''' '''zero''' '''will be removed.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"|
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Press '''Ctrl + S''' to save the file.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide'''

| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| The '''unshift function''' takes 2 '''arguments''' -

# '''1st argument '''is the''' Array''' in which to add an '''element'''
# '''2nd argument '''is the '''element '''to be added into the '''Array'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide'''
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''shift function''' takes only one '''argument - '''

* This is the '''Array '''from which the '''element '''needs to be removed.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide'''
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''Note:'''

Both these functions works at '''first position '''of an array.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide'''
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| We can collect the element removed by '''shift function''' into some variable.

This syntax for this is -

'''$variable = shift(@myArray)'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Switch to terminal

'''perl perlArray.pl'''

| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Then switch to the '''terminal '''and '''execute '''the '''Perl''' '''script.'''

Type '''perl perlArray dot pl '''and press''' Enter.'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| '''Highlight the output on the terminal'''

'''Array after adding 0 into an array at 1st position: 0 1 2 3 '''

'''Array after removing element from 1st position: 1 2 3 '''

| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| The output displayed on the '''terminal''' is as highlighted.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"|
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now, let us see how to remove an '''element''' from a specified position of an '''Array'''.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| '''slide'''
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| * '''splice function '''removes an '''element''' from a specified position of an '''Array'''.
* The '''return value '''of this '''function '''is an '''Array '''of removed '''elements'''.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Gedit
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Let us understand this using a sample program.

Go to the '''perlArray dot pl''' file which we created earlier.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| '''<nowiki># Removes element(s) from the specified position </nowiki>'''

'''@myNewArray = (1, 2, 3, 4, 5, 6, 7, 8, 9); '''

'''@splicedArray = splice(@myNewArray, 4, 2); '''

'''print "Spliced Array: @splicedArray\n";'''
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Type the piece of code shown on the screen.

We need to provide

* the '''index''' from where we want to remove the '''elements''' and
* the '''offset''' upto which we want to remove the '''elements'''

In our case, the '''elements '''5 and 6 will be removed.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Switch to terminal

'''perl perlArray.pl'''

| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Then switch to the '''terminal '''and '''execute '''the '''Perl script''' by typing -''' '''

'''perl perlArray dot pl '''and press''' Enter.'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| '''Highlight the output on the terminal'''

'''Spliced Array: 5 6'''
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| The output displayed on the '''terminal''' is as highlighted.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"|
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now let us look at few other '''inbuilt functions '''of '''Arrays.'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| * '''split function '''is used to divide a '''string '''at a specified '''delimiter'''.
* The return value of this '''function '''is an '''Array'''.
* The '''elements '''of this '''Array '''are the divided portions of the '''string'''.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| * '''join function''' joins the '''elements '''of an '''Array, '''using the specified '''delimiter'''.
* It returns a string of joined '''elements.'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''sort function '''sorts an '''Array '''in alphabetical/numerical order.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''qw function '''returns an '''Array '''of words, separated by a '''white space.'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"|
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now let us understand all these functions using a sample program.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Terminal

'''gedit arrayFunctions.pl &'''
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Switch to '''terminal''' and type

'''gedit arrayFunctions dot pl space ampersand'''

This will open '''arrayFunctions dot pl''' file in '''gedit'''.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Gedit

'''<nowiki>#!/usr/bin/perl </nowiki>'''

'''use Data::Dumper; '''

'''$string = "Illustration Of Array Functions"; '''

'''@newArray = split (/ /, $string); '''

'''print "Declared String: $string\n\n"; '''

'''print "Array after split: \n"; '''

'''print Dumper \@newArray; '''

'''print "\n"; '''

'''$joinedString = join(", ", @newArray); '''

'''print "String After Join: $joinedString\n\n"; '''

'''@sortedArray = sort(@newArray); '''

'''print "Array after sorting: @sortedArray\n\n";'''

'''@qwArray = qw (Hello Perl Array); '''

'''print "Array after qw: \n"; '''

'''print Dumper \@qwArray; '''

| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Type the following piece of code as shown.

<nowiki><<pause>></nowiki>

In this case, each word of the variable string will become an '''element '''of an '''Array.'''

Here, each '''element''' of '''newArray '''will be joined by '''comma.'''

'''sort function''' will sort the '''elements''' of '''newArray''' in alphabetical order.

'''qw function''' creates an '''Array''' of words separated by '''space.'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide'''
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Let us understand each function.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide'''
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''split function '''takes two '''arguments.'''

* '''1st '''is the '''delimiter '''by which the '''string '''needs to be split
* '''2nd '''is the '''string '''which needs to be split.

'''Delimiters''' can be specified in f'''orward slash, single or double quotes.'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide'''
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''join function '''takes 2 '''arguments.'''

# '''1st '''is the '''delimiter '''by which the '''Array elements '''needs to be joined'''.'''
# '''2nd '''is the '''Array.'''

'''Delimiters''' can be specified in '''single or double'''

'''quotes.'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide'''
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''sort function '''takes a single''' argument,''' which is the '''Array '''that needs to be sorted.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| '''Slide'''
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''qw function '''returns an '''Array '''of words, separated by '''space.'''

It is not necessary to specify the word in''' quotes, '''if written using '''qw. '''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Press ctrl + s
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Press '''Ctrl + S '''to save the file.

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Switch to terminal

'''perl arrayFunctions.pl'''

| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Then switch to the '''terminal '''and '''execute '''the '''Perl script''' by typing -

'''perl arrayFunctions dot pl'''

and press''' Enter.'''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Highlight the output on the terminal

'''Declared String: Illustration Of Array Functions '''

'''Array after split: '''

'''<nowiki>$VAR1 = [ </nowiki>'''

''''Illustration', '''

''''Of', '''

''''Array', '''

''''Functions' '''

''']; '''

'''String After Join: Illustration, Of, Array, Functions '''

'''Array after sorting: Array Functions Illustration Of '''

'''Array after qw: '''

'''<nowiki>$VAR1 = [ </nowiki>'''

''''Hello', '''

''''Perl', '''

''''Array' '''

'''];'''
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| The following output is displayed on the '''terminal'''<nowiki>. <pause></nowiki>

''<nowiki><< Will just highlight the output and will not read it while recording >></nowiki>''

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide: Summary
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Let us summarize.

In this tutorial, we have learnt to -

* add/remove '''elements '''from an '''Array'''
* basic functions which can be performed on '''Array'''
* using sample programs

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide: Assignment
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Here is assignment for you -

# '[http://script.spoken-tutorial.org/index.php/Perl script.spoken-tutorial.org/index.php/Perl]' split the above '''string''' at '/' '''delimiter'''
# Add '''https:// '''at the start of an newly created '''Array'''
# Remove '''element “Perl” '''from an '''Array'''
# Declare number '''Array '''and sort it

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| About the Project
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Watch the video available at the following link

It summaries the Spoken Tutorial project

If you do not have good bandwidth, you can

download and watch it

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Spoken Tutorial Workshops
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| The Spoken Tutorial Project Team

Conducts workshops using spoken tutorials

Gives certificates to those who pass an online

test

For more details, please write to

contact at spoken hyphen tutorial dot org

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Acknowledgment

http://spoken-tutorial.org\NMEICT-Intro
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Spoken Tutorial Project is a part of the Talk to a

Teacher project

It is supported by the National Mission on

Education through ICT, MHRD, Government of India.

More information on this Mission is available

spoken hypen tutorial dot org slash NMEICT hyphen Intro

|-
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"|
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Hope you enjoyed this '''Perl''' tutorial.

This is Amol Brahmankar signing off.

Thanks for joining

|}

PERL/C2/Array-functions/English - Revision history

PoojaMoolya at 07:31, 17 June 2014

Nancyvarkey at 08:46, 20 December 2013

AmolBrahmankar at 07:11, 29 August 2013

AmolBrahmankar: Created page with ''''Title Of Script: '''Array functions in Perl '''Author:''' Amol Brahmankar '''Keywords:''' Array functions in perl video tutorial. {| style="border-spacing:0;" | style="bo…'

@@ Line 8: / Line 8: @@
 {| style="border-spacing:0;"
-| style="border-top:0.05pt solid #000000;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| <center>'''Visual Clue'''</center>
+| style="border-top:0.05pt solid #000000;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| <center>'''Visual Cue'''</center>
 | style="border:0.05pt solid #000000;padding:0.097cm;"| <center>'''Narration'''</center>

@@ Line 65: / Line 65: @@
 This can be done by using;
 # '''push''' '''function''' which adds an '''element''' at the last position of an '''Array'''
@@ Line 137: / Line 137: @@
-| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Let me explain the syntax of '''push function-'''
+| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''push function''' takes 2 arguments-
-# '''1st argument '''to the '''push function '''is the '''Array''' in which to add an''' element.'''
+# '''1st argument '''to the '''push function, '''is the '''Array''' in which to add an''' element.'''
 # '''2nd argument '''is the''' element '''which is''' '''to be '''pushed''' into the '''Array.'''
@@ Line 150: / Line 150: @@
 * '''pop function''' takes only one''' argument'''
-* It is the '''Arrayname '''from which an '''element '''needs to be removed.
+* It is the '''Array '''from which an '''element '''needs to be removed.
@@ Line 158: / Line 158: @@
 | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''Note:'''
-Both these functions works at '''last position''' of an '''Array.'''
+Both these functions work at '''last position''' of an '''Array.'''
 |-