Perl: Print Version String from Script

By Xah Lee. Date: . Last updated: .

Print version from the command line:

perl --version

Print version from within a script:

#-*- coding: utf-8 -*-
# perl

# prints version string
print $^V;  # sample output: v5.14.2

Printing version from script is a important technique to find out which version your script is running. Because, you might have several version installed, and in terminal, there are aliases, links, path environment variables, various shell init scripts, that effect which Perl version will start when you type perl in shell.

Show Perl Version History

Type perldoc perlhist to list perl release history.

perldoc perlvar

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Perl

  1. Perl Overview
  2. Version String
  3. Help System

Detail

  1. Quoting String
  2. Format String
  3. String Operations
  4. True, False
  5. if then else
  6. Loop
  7. List / Array
  8. Loop Thru List
  9. Map f to List
  10. List Comprehension
  11. Hash Table
  12. Function Optional Param
  13. regex

Text Processing

  1. Unicode 🐪
  2. Convert File Encoding
  3. Read Write File
  4. Traverse Dir
  5. Find Replace
  6. Validate Local Links
  7. Split Line by Regex

Advanced

  1. Sort List, Matrix, Object
  2. Sort Matrix
  3. Sort Unstable
  4. Sort Misc
  5. List Modules, Search Paths
  6. Write a Module
  7. Complex Numbers
  8. System Call
  9. gzip
  10. Get Env Var
  11. GET Web Content
  12. Email