C++ Linux Systems Practice

Practice repository for entry-level C++ and Linux systems concepts that often appear in embedded Linux, tooling, and systems-software interviews.

This repo is designed to bridge the gap between small scripting experience and a more structured C++/Linux workflow:

• command-line parsing
• config file loading
• file I/O
• lightweight logging
• basic TCP client code
• clean header/source separation

Repository Layout

Path	Purpose
include/	Public headers
src/	Reusable C++ modules
tests/	Small assertion-based tests
examples/	Executable examples
docs/	Interview notes and extension ideas

Modules

1. arg_parser Parse flags such as --host, --port, --config, and --verbose.

2. config_loader Read simple key=value text configuration files.

3. logger Small logger with log levels and consistent output formatting.

4. tcp_client Minimal POSIX socket client for Linux networking practice.

Build and Run

From WSL or Linux:

make
make test
make examples

Clean build artifacts:

make clean

Why This Repo Matters

For fresher C++ and embedded Linux roles, interviewers often look for:

• comfort with multiple .hpp/.cpp files
• standard library usage without overengineering
• reading errors from the compiler
• command-line and file-based tooling
• basic Linux systems awareness

This repo is a practice space for those foundations.

Suggested Study Order

1. Logger
2. Config loader
3. Argument parser
4. TCP client
5. Combine them into one example app