Perl Directories

Following are the standard functions used to play with directories.

 1) Display all the Files
There are various ways to list down all the files available in a particular directory. 
a. Using the glob operator. 
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#!/usr/bin/perl

# Display all the files in a directory.
$dir = "C:/temp";
my @files = glob "$dir/*.*";

foreach (@files ) {
   print $_ . "\n";
}

# Display all the text files in a directory.
print "\n Display all the text files in a directory\n";
my @files = glob "$dir/*.txt";

foreach (@files ) {
   print $_ . "\n";
}

b. Open a directory and list out all the files available inside the directory. 
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#!/usr/bin/perl

opendir (DIR, "C:/temp") or die "Couldn't open directory, $!";
while ($file = readdir DIR) {
   print "$file\n";
}
closedir DIR;

2) Create new Directory 
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#!/usr/bin/perl

$dir = "C:/temp1";

# This creates perl directory in /tmp directory.
mkdir( $dir ) or die "Couldn't create $dir directory, $!";

3) Remove a directory 
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#!/usr/bin/perl

$dir = "C:/temp1";

# This removes perl directory from /tmp directory.
rmdir( $dir ) or die "Couldn't remove $dir directory, $!";


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