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ZhiKe AI
ZhiKe AI
Feb 20, 2017 · Fundamentals

Mastering sed: A Comprehensive Guide to Stream Editing with Regular Expressions

This article introduces sed as a powerful stream editor for text processing, explains its pattern‑space workflow, details command syntax, addressing methods, options, meta‑characters, and provides numerous concrete examples—including deletions, substitutions, range selections, multi‑command scripts, and file I/O operations—illustrating how each feature works in practice.

Unixcommand-lineregular expressions
0 likes · 16 min read
Mastering sed: A Comprehensive Guide to Stream Editing with Regular Expressions
MaGe Linux Operations
MaGe Linux Operations
Feb 8, 2017 · Fundamentals

Master Python’s re Module: A Complete Guide to Regular Expressions

This article explains how Python’s re module implements regular expressions—a powerful, language‑agnostic tool for pattern matching, validation, searching, and text manipulation—covering compilation, core functions, metacharacters, grouping, and practical usage examples.

re moduleregexregular expressions
0 likes · 7 min read
Master Python’s re Module: A Complete Guide to Regular Expressions
Aotu Lab
Aotu Lab
Dec 6, 2016 · Fundamentals

Master JavaScript Regular Expressions: From Basics to Advanced Patterns

This comprehensive guide explains what regular expressions are, their practical uses in data validation and string manipulation, the syntax of literals and constructors, key String and RegExp methods, character classes, quantifiers, anchors, groups, assertions, flags, and the behavior of JavaScript's NFA engine, all illustrated with clear code examples.

JavaScriptNFA EngineString Methods
0 likes · 15 min read
Master JavaScript Regular Expressions: From Basics to Advanced Patterns
Practical DevOps Architecture
Practical DevOps Architecture
Jul 11, 2016 · Fundamentals

Regular Expression Syntax and Metacharacter Guide

This article explains regular expression delimiters, common metacharacters, quantifiers, anchors, character classes, logical operators, negation, and escaping, providing clear examples of each pattern and how they match specific strings in target text.

metacharacterspattern-matchingregex
0 likes · 8 min read
Regular Expression Syntax and Metacharacter Guide
Qunar Tech Salon
Qunar Tech Salon
Mar 23, 2016 · Operations

Using grep with Regular Expressions on Linux and Unix Systems

This guide explains how to use the GNU grep tool on Linux and Unix to perform powerful text searches with basic and extended regular expressions, covering pattern matching, character classes, wildcards, logical operators, quantifiers, output formatting, and differences between grep and egrep.

GrepLinuxregex
0 likes · 10 min read
Using grep with Regular Expressions on Linux and Unix Systems
Baidu Tech Salon
Baidu Tech Salon
Jan 16, 2015 · Fundamentals

The History and Origins of the Unix grep Command

The Unix grep command, created by Ken Thompson before the fourth edition of Unix and named after the ed editor’s “g/re/p” syntax, first appeared in Version 4, later expanded by Al Aho into egrep and fgrep, and was popularized through the GNU and BSD implementations, illustrating Unix’s collaborative evolution.

GrepSoftware DevelopmentUnix
0 likes · 9 min read
The History and Origins of the Unix grep Command
MaGe Linux Operations
MaGe Linux Operations
Aug 21, 2014 · Fundamentals

Master Python Regular Expressions: From Basics to Advanced Usage

This article provides a comprehensive guide to Python's regular expression support, covering fundamental concepts, greedy vs. non‑greedy quantifiers, escape handling, match objects, pattern compilation, and the full suite of re module functions with practical code examples.

Pythonmatchpattern
0 likes · 16 min read
Master Python Regular Expressions: From Basics to Advanced Usage