Where the command line arguments are stored and if you want to read command-line arguments with Perl, how would you do that?

0 Answers  

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How does polymorphism work in perl? Give an example.

0 Answers  

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what r the different type of function in perl ???

1 Answers   ABC, Symphony,

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What is it meants by '$_'?

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What are the arguments and what do they mean in perl programming?

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while (my ($key, $value) = each(%ENV)) { print "$key - $value\n"; } What does the above sample code produce? What function do you use for reading a list of files within a directory? my %hash = ( 'hi' => {'hello' => 'all'}, 'bye' => {'later' => 'gone'} ); print $hash{'hi'}; What is printed when the above code is executed? sub new { my $pkg = shift; my $test = {'name' => shift;}; ???? return $test; } Which one of the following replaces "????" in the above code in order to cause the function new to return an object of type "Test"? while (<STDIN>) { ???? print "$_\n"; } Which one of the following statements causes the above code to strip all whitespace from the end of all lines of input and to print the resulting lines to standard output while (my ($key,$value) = each(%hash)) { print "$key - $value\n"; delete $hash{$key}; } open(FILE,"<file.dat"); my $data = ''; { local $/ = undef; $data = <FILE>; } close(FILE); my $foo = 21; $foo <<= 5; $foo >>= 4; print $foo; @arr = (1,2,3); {local $" = "\n"; print "@arr\n"; } my $line = "Hello World"; substr($line,5,2) = "abc"; print $line; Why is sprintf rarely used in perl in comparison to similar (or the same) functions in other languages? my $subRef = sub {print shift;}; How is the subroutine above called with one parameter? How can the values of an associative array be placed in sorted order in a new array? What function is often necessary for building data structures to be passed to low-level routines such as ioctl and fcntl? sub foo { if (shift(@_) > 0) { shift; } } print foo(10,5); print foo(-10,5); What does the above sample for (my $i = 1; $i <= 3; $i++) { print 1..$i; print "\n"; } my $data = 5**3 * 12,2+2; print $data; sub foo { my $value = shift; if ($value) { print 1; shift; } else { return shift(@_) + 3; } } print foo(10,20); What is printed as the result of executing the above code? $var = 20; sub s1 { print "$var "; } sub s2 { local $var = 10; s1;} sub s3 { my $var = 30; s1;} s3; s2; s1; On systems that record file ownership, how may the owner of a file be identified? Which one of the following sets $y to be a copy of $x with every occurrence of foo changed to bar? Which one of the following is an array literal that represents a 4-element array containing the numbers 1, 4, 2, and 6? sub foo {2*shift || 'x';} printf ("%s %s %s", foo(5),foo(0),foo(-5)); What does the above sample code print? Suppose $x contains a number. Which one of the following statements sets $y to be a string containing the octal value of $x?

2 Answers  

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Try pattern matching for the following: 1) 10.111.23.11 2) /root/abc/cde/fgg/ac.xml --> Get file name without extention. 3) /root/abc/ac.xml/fgg/ac.xml --> Get file name without extention. 4) What does "DIE" meant in PERL? 5) chomp 6) "This is saturday" --> Print the weekday number. 7) 11-2-2009 --> Print the name of the month. 8) Reverse the string without using func in C.

2 Answers  

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How to find out the version of PERL being installed on your LINUX machine.

4 Answers   Mind Tree,

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How will you create a file in perl?

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What are the different ways to run cgi?

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Write a program that explains the symbolic table clearly.

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What is the difference between for & foreach, exec & system?

9 Answers   Photon, Wipro,

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