perl – CodeRavo

Understanding and Fixing Locale Settings for Perl on Linux Systems

Introduction When working with Perl scripts, you may encounter a warning related to locale settings. This … Understanding and Fixing Locale Settings for Perl on Linux SystemsRead more

configuration, Environment Variables, Linux, Locale, perl, shell, SSH, system-settings, UTF-8

Understanding the Shebang: Invoking Interpreters in Unix Scripts

The Shebang: Giving Your Scripts a Voice When you write a script in a language like … Understanding the Shebang: Invoking Interpreters in Unix ScriptsRead more

Bash, chmod, executable, interpreter, Linux, perl, portability, Python, script, shebang, unix

Extracting Substrings with Regular Expressions

Regular expressions are a powerful tool for matching patterns in strings, and one common task is … Extracting Substrings with Regular ExpressionsRead more

capturing-groups, JavaScript, lookahead, lookbehind, perl, regular expressions, substring extraction

Text Substitution with Command-Line Tools

Text Substitution with Command-Line Tools Often, when working with files on the command line, you’ll need … Text Substitution with Command-Line ToolsRead more

Bash, Command Line, file-manipulation, find-and-replace, perl, regular expressions, sed, text-substitution

Converting Strings to Lowercase (and Uppercase) in Bash

Introduction In shell scripting, particularly with Bash, manipulating string cases is a common task. Whether you’re … Converting Strings to Lowercase (and Uppercase) in BashRead more

awk, Bash, lowercase-conversion, nodejs, parameter-expansion, perl, PHP, Python, ruby, sed, string manipulation, tr, uppercase-conversion