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How to remove a directory which has few files in it? I know about rmdir however it does not remove a dir which has files/dir in it!
Navrattan
- Oct 8th, 2013
Rmtree () is function which is used to remove a directory which has files in it
Print this array, sorted in reversed case-insensitive order...
You have unsorted array of strings, like:my @arr = qw(hello World Show must go on);Print this array, sorted in reversed case-insensitive order.
Gaurav.khurana
- Apr 18th, 2015
Code- span style="color: #ff0000;">" "# cmp used to do characters sort and
- # lc to do case insensitive
- # after sorting applied reverse on it
What is meant by 'chomp'? where do we require this ?
babu
- Jun 20th, 2012
Hi i am babu.chomp is pre define function it will delete last character if it is a new line character ex1:$a="babu "; chomp($a); print $a;#it will not print new line ...after babu. ex2:print "Enter a...
sergant
- Apr 28th, 2012
chomp VARIABLE chomp( LIST ) chomp This safer version of "chop" removes any trailing string that corresponds to the current value of $/ (also known as $INPUT_RECORD_SEPARATOR in...
Perl Code
1) Input ip address. Check if it is in the range 172.125.1.0 and 172.125.25.0 using only regular expressions in Perl. Do not use parse functions.
2) Input a name. Check if it is valid (has at-least 3 letters and one vowel) using only return functions and regular expressions in Perl. Do not use parse functions.
3) Input email address. Check if it is valid using return function...josepla
- Jan 11th, 2017
using regex for all 3 questions IP, Name and Email"perl use v5.24; use utf8; use open :std, :encoding(cp437); # Encoding used by console, to check console type in Windows cmd us...
praveen
- Nov 29th, 2016
$ip=;
chomp($ip);
if ($ip =~ /^172.125.([1-9]|1[1-9]|2[1-5]).0/){print "$ip in range
" ;}
else{print "$ip not in range
"};Install Perl module using CPAN
How to install Perl module using CPAN. How to include the module in a program?
ankitloud
- Nov 20th, 2011
I think the best option will be : type following command on command prompt
cpan App::cpanminus then you can install any module using its name using following command
cpan Module::Apache
let me know if it doesn't workNavshere
- Aug 19th, 2011
Perl Makefile.PL
nmake
nmake test
nmake install
# To check successive installation
perl -e "use Twig"How to implement stack in Perl?
shah
- May 16th, 2018
Its wrong sangeeta. To implement a stack in perl, we have to use push and pop function, push will add an element at the end of array and pop will remove the element from the end of array
singh_Pushpendra
- Aug 13th, 2010
#! /usr/bin/perl -w$str1="Pushpendra Singh";@str=split("", $str1);@stack_array=();foreach $i (@str){ print "nt Item being pushed is : $i"; push(@stack_a...
What is -> Symbol in perl
soumdgr8
- Aug 1st, 2015
Is used for chaining elements of a reference type. The element can be another reference, scalar, array, function, object
shalusanju
- Aug 13th, 2010
In object oriented PERL, the arrow -> symbol is used for creating or accessing a particular object of a class. For eg. in Perl/Tk 1. use Tk; my $main_win = MainWindow->new(); Here we u...
Why do you program in PERL
gireeshkumar.kg
- Jun 29th, 2009
* PERL is programmer friendly. It is easy to code and can do it in less number of lines. It does all the nice things with minimum fuzz.* Text manipulation is unmatched. * It has built-in regex.* Has the support of world's largest archive of modules(CPAN)
ashwini chavan
- Jul 22nd, 2008
It is having the features of scripting (Shell) as well as programming (like C). Using PERL you can easily do the system administration works where comparitively difficult with Shell script.
What's is the use of 'require' and what does this mean?
nitashaa
- Jul 15th, 2008
require function is used to load a seperate perl script or module in run time.If the file to be loaded is not in the directories listed in @INC array then full path of the perl file is to be passed in...
Swanand
- Mar 27th, 2007
'require' is like a preprocessor directive in C/C++ which imports the external file .You can use the subroutines inside the current source code which are defined in the external file.require 'coreDBlib.pl'?=>> #include
What is hash in perl?
ashwini chavan
- Jul 22nd, 2008
Hash is an associative array where data is stored in "key"->"value" pairs.Eg : fruits is a hash having their names and price%fruits = ("Apple", "60", "Banana", "20", "Peers", "40");
wow_suraj
- May 2nd, 2008
Hash is also known as 'Associative array' sometimes. It basicaly contains of two parts first is key and value. It is very much like a name given for a value.Ex. A student with his/her roll number can ...
What is Grep used for in Perl?
vasu
- Dec 19th, 2011
Code- #!/usr/bin/perl
- /^m(.*)$/i"the value is :""
- ";
- }
contactparagm
- Dec 3rd, 2010
"grep" is a built function which extract all elements in ARRAY, matched by regex/pattern given as argument for grep and return the resultant elements in an array.perl syntax: &nbs...
How do you you check the return code of a command in Perl
Suppose you run a program/script in Perl:system("./server ....");How will you check the return code?
contactparagm
- Dec 3rd, 2010
Perl defines predefined variable $? which gives the return code of last command executed.
amitkshirsagar
- Jun 22nd, 2009
$r = system("command .. e.g. search");print"r is $rn";Here, if $r is 0, that means command has executed successfully.Any other value means command has failed.
What is difference between "Use" and "require". In which case should "Use" be used and not "Require"?
gireeshkumar.kg
- Jun 29th, 2009
1)Usei) use for loading the modules( Should not give the .pm extension)ii) The loaded module is verified at the compile time.2) Requirei) Use for loading the modules and perl programs( .pm extension i...
prabhasgupte
- Feb 12th, 2008
There is one more basic difference between 'use' and 'require'.When you 'use' the control is passed to that file at runtime.Whereas, when you 'require' the code from th...
What does this mean : '$_' ?
ashwini chavan
- Jul 22nd, 2008
The most commonly used global scalar variable is the $_ variable. Many Perl functionsand operators modify the contents of $_ if you do not explicitly specify the scalarvariable on which they are to op...
prabhath_01
- May 31st, 2008
It is called as default variable in Perl.It hold the current value in any block ie., 'for' or 'while'. Eg.,******************************************print "n", $_ for (1..10)...
What does this symbol mean '->'
prabhath_01
- May 31st, 2008
Uses of "->" Operator:###################1) Reference the method of a module.use CGI;my $cgi = new CGI ();$cgi->header();2) In Perl it is an infix dereference operator. $arr = [ ...
What is the difference between a perl program and a shell script? Which out of these is easier to understand and execute? And How?
sandeep
- Oct 23rd, 2015
Are you sure that its necessary to provide semicolon.
Because I have tried it and it works without them also.rahulashu
- Jun 10th, 2008
if the number of functionality is no more then we can go for the unix but if u are working for database connectivity...
Ans