Command Line Diff
Command Line Diff is a tool or utility that compares files or directories to identify differences between them, typically using text-based output in a terminal or shell environment. It is commonly implemented through commands like 'diff' on Unix-like systems (Linux, macOS) or 'fc' on Windows, and is essential for version control, code review, and debugging workflows. The tool outputs lines that have been added, removed, or changed, often with context to help users understand modifications.
Developers should learn and use Command Line Diff when they need to quickly compare code, configuration files, or text documents to track changes, resolve merge conflicts in version control systems like Git, or verify updates in scripts. It is particularly useful in automated testing, continuous integration pipelines, and during code reviews to ensure accuracy and consistency across different versions of files.