Perl | Useful File-handling functions

Perl | Accessing a Directory using File Globbing

Last Updated : 30 Jun, 2019

In Perl, a directory is used to store values in the form of lists. A directory is quite similar to a file. Just like a file, the directory also allows performing several operations on it. These operations are used for the modification of an existing directory or creation of a new one. A directory can be very easily opened and processed using the built-in function glob.

Glob:
It returns a list of files that match the expression passed in the argument. This function can print all or the specific files whose extension has been passed to it.

Syntax:

@list = <*>; // Prints all files in current directory
@list = glob(“*.pl”); // Prints all files in current directory with extension .pl
@list = glob(‘//GeeksforGeeks//Files//*); // Prints all files in the given path

Here are some examples that illustrate accessing a directory using File Globbing.
Examples:

Accessing the current directory of the script:

#!/usr/bin/perl -w 
  
# Accessing files using glob function 
@files = glob('*');      # Returns list of all files 
foreach $file (@files)   # Loop to run through all files 
{ 
    print $file . "\n";     # Print all files 
}  

Output:
Glob Output1

Opening a specified directory:

#!/usr/bin/perl -w 
  
# Prints only the filename excluding the path 
use File::Basename;  
  
# Returns list of all files 
@files = glob('C:/Users/GeeksForGeeks/Folder/*');  
foreach $file (@files) # Loop to run through all files 
{ 
    print basename($file), "\n"; # Print all files 
}  

Output:

Perl | Useful File-handling functions

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