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README.md

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+# grrs - A Rust CLI Search Tool
+
+This is a learning project based on the [Command Line Applications in Rust](https://rust-cli.github.io/book/tutorial/) tutorial. The project implements a simple grep-like command-line tool that searches for a pattern in a file.
+
+## Project Overview
+
+`grrs` (pronounced "grass") is a simple CLI tool that:
+- Takes a pattern and a file path as command-line arguments
+- Searches for the pattern in the specified file
+- Prints each line that contains the pattern
+
+This project demonstrates:
+- Command-line argument parsing with `clap`
+- File I/O operations in Rust
+- Error handling with the `Result` type
+- Structuring a Rust CLI application
+
+## Building and Running
+
+### Using Cargo
+
+```bash
+# Build the project
+cargo build
+
+# Run the project (replace PATTERN and PATH with your values)
+cargo run -- PATTERN PATH
+```
+
+### Using podman or docker
+
+```bash
+# Build the project
+podman run -v$PWD:/app:z -w/app --rm rust cargo build
+
+# Run the project (replace PATTERN and PATH with your values)
+podman run -v$PWD:/app:z -w/app --rm rust cargo run -- PATTERN PATH
+```