When working with databases, it’s essential to have a clear understanding of the schema and table … Listing Tables in PostgreSQL SchemasRead more
regular-expression
Extracting Matched Patterns with Awk
Extracting Matched Patterns with Awk awk is a powerful text-processing tool commonly used in Unix-like operating … Extracting Matched Patterns with AwkRead more
Non-Greedy Regular Expression Matching
Understanding Greedy vs. Non-Greedy Matching Regular expressions are powerful tools for pattern matching in text. A … Non-Greedy Regular Expression MatchingRead more
Understanding and Crafting Regular Expressions for IPv4 Address Validation
Introduction In computer networking, an IPv4 address is a 32-bit number that uniquely identifies each device … Understanding and Crafting Regular Expressions for IPv4 Address ValidationRead more
Leveraging Regular Expressions with the `find` Command
The find command is a powerful tool for locating files within a directory hierarchy. While it … Leveraging Regular Expressions with the `find` CommandRead more
Extracting Data Between Quotation Marks with Regular Expressions
Regular expressions (regex) are powerful tools for pattern matching within text. A common task is extracting … Extracting Data Between Quotation Marks with Regular ExpressionsRead more
Splitting Strings by Newlines in Java
Splitting Strings by Newlines in Java When working with text data in Java, it’s often necessary … Splitting Strings by Newlines in JavaRead more
Regular Expressions for Decimal Numbers with Precision
Regular expressions are a powerful tool used to match patterns in strings, and they can be … Regular Expressions for Decimal Numbers with PrecisionRead more
Working with Whitespace in Ruby Strings
Whitespace characters (spaces, tabs, newlines, etc.) often need to be manipulated when working with strings. Ruby … Working with Whitespace in Ruby StringsRead more
Extracting Query Parameters from URLs in PHP
Understanding URL Query Strings URLs often contain query strings – the part after the question mark … Extracting Query Parameters from URLs in PHPRead more