Regular Expression Perl

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  4. Pattern-Matching Operators(The syntax used to perform a pattern match on a string)
# The syntax used to perform a pattern match on a string is $string =~ /regular expression/expression modifier (optional)   
    
    #!/usr/local/bin/perl -w    
        
    while ()     
    {   
       print if ($_ =~ /the/);  
    }