Introduction to Unix and Shell Programming

11

INTRODUCTION TO PERL

Chapter Objectives

• The structure of a Perl script
• Executing Perl scripts
• Types of data and methods of assigning values to them
• Concatenating strings, repeating a string and comparing strings
• The meaning and utility of current line ($_) and current line number ($.)
• Lists and arrays in Perl
• Working with lists—list manipulations
• Working with files—file handling and processing
• Remove the last character of a variable—the chop() and chomp() functions
• Working with associative arrays
• Decision making and loop control structures
• Use of regular expressions to search and extract records having required patterns
• Defining and using subroutines in Perl

Perl stands for Practical Extraction and Report Language. Larry Wall, the ...