Text Processing
28 published questions
What you’ll find here
- Short, practical answers with runnable Perl code blocks.
- Sandbox-verified output (proof that the example actually runs).
- Notes on common pitfalls and version differences.
- beginner • 2025-12-30How to perform case-insensitive search and replace in Perl?
- intermediate • 2025-12-30How to sort a file numerically by column in Perl?
- beginner • 2025-12-30How to remove HTML tags from text in Perl?
- intermediate • 2025-12-30How to parse Apache log format in Perl?
- intermediate • 2025-12-30How to generate CSV from array of hashes in Perl?
- beginner • 2025-12-30How to capitalize first letter of each word in Perl?
- beginner • 2025-12-30How to extract numbers from mixed text in Perl?
- intermediate • 2025-12-30How to convert Markdown to HTML in Perl?
- intermediate • 2025-12-30How to parse fixed-width column data in Perl?
- intermediate • 2025-12-30How to read last N lines of a file in Perl?
- intermediate • 2025-12-30How to replace multiple patterns in one pass in Perl?
- intermediate • 2025-12-30How to validate email format using Perl regex?
- intermediate • 2025-12-30How to parse XML and extract node values in Perl?
- intermediate • 2025-12-30How to find lines matching a pattern across multiple files in Perl?
- beginner • 2025-12-30How to convert Windows line endings to Unix in Perl?
- intermediate • 2025-12-30How to parse JSON file and extract specific fields in Perl?
- intermediate • 2025-12-30How to generate a report from log file data in Perl?
- beginner • 2025-12-30How to convert tabs to spaces in a file using Perl?
- intermediate • 2025-12-30How to extract URLs from HTML content in Perl?
- beginner • 2025-12-30How to merge multiple text files into one in Perl?
- beginner • 2025-12-30How to count word frequency in a text file using Perl?
- beginner • 2025-12-30How to remove duplicate lines from a file in Perl?
- intermediate • 2025-12-30How to split a large text file into smaller chunks in Perl?
- intermediate • 2025-12-30How to convert CSV to JSON in Perl?
- beginner • 2025-12-30How to parse CSV file and filter rows in Perl?
- intermediate • 2025-12-30How to extract email addresses from text file using Perl?
- intermediate • 2025-12-29How to extract and format data from unstructured text
- beginner • 2025-12-29How to process and deduplicate large text files