Rust 在這個(gè)領(lǐng)域要大放異彩：一本新書(shū)推薦（附下載）

https://www.oreilly.com/library/view/command-line-rust/9781098109424/

1. Getting Started with “Hello, world!”
2. Organizing a Rust Project Directory
3. Creating and Running a Project with Cargo
4. Writing and Running Integration Tests
1. Adding a Project Dependency
2. Understanding Program Exit Values
3. Testing the Program Output
4. Exit Values Make Programs Composable
5. Summary

1. How echo Works
2. Getting Started
1. Accessing the Command-Line Arguments
2. Adding clap as a Dependency
3. Parsing Command-Line Arguments Using clap
4. Creating the Program Output
3. Writing Integration Tests
1. Creating the Test Output Files
2. Comparing Program Output
3. Using the Result Type
4. Summary

1. How cat Works
2. Getting Started
1. Starting with Tests
2. Creating a Library Crate
3. Defining the Parameters
4. Iterating Through the File Arguments
5. Opening a File or STDIN
6. Using the Test Suite
3. Solution
1. Reading the Lines in a File
2. Printing Line Numbers
4. Going Further
5. Summary

1. How head Works
2. Getting Started
1. Writing a Unit Test to Parse a String into a Number
2. Converting Strings into Errors
3. Defining the Arguments
4. Processing the Input Files
5. Reading Bytes Versus Characters
3. Solution
1. Reading a File Line by Line
2. Preserving Line Endings While Reading a File
3. Reading Bytes from a File
4. Printing the File Separators
4. Going Further
5. Summary

1. How wc Works
2. Getting Started
1. Iterating the Files
2. Writing and Testing a Function to Count File Elements
3. Solution
1. Counting the Elements of a File or STDIN
2. Formatting the Output
4. Going Further
5. Summary

1. How uniq Works
2. Getting Started
1. Defining the Arguments
2. Testing the Program
3. Processing the Input Files
3. Solution
4. Going Further
5. Summary

1. How find Works
2. Getting Started
1. Defining the Arguments
2. Validating the Arguments
3. Finding All the Things
3. Solution
4. Conditionally Testing on Unix Versus Windows
5. Going Further
6. Summary

1. How cut Works
2. Getting Started
1. Defining the Arguments
2. Parsing the Position List
3. Extracting Characters or Bytes
4. Parsing Delimited Text Files
3. Solution
1. Selecting Characters from a String
2. Selecting Bytes from a String
3. Selecting Fields from a csv::StringRecord
4. Final Boss
4. Going Further
5. Summary

1. How grep Works
2. Getting Started
1. Defining the Arguments
2. Finding the Files to Search
3. Finding the Matching Lines of Input
3. Solution
4. Going Further
5. Summary

1. How comm Works
2. Getting Started
1. Defining the Arguments
2. Validating and Opening the Input Files
3. Processing the Files
3. Solution
4. Going Further
5. Summary

1. How tail Works
2. Getting Started
1. Defining the Arguments
2. Parsing Positive and Negative Numeric Arguments
3. Using a Regular Expression to Match an Integer with an Optional Sign
4. Parsing and Validating the Command-Line Arguments
5. Processing the Files
6. Counting the Total Lines and Bytes in a File
7. Finding the Starting Line to Print
8. Finding the Starting Byte to Print
9. Testing the Program with Large Input Files
3. Solution
1. Counting All the Lines and Bytes in a File
2. Finding the Start Index
3. Printing the Lines
4. Printing the Bytes
5. Benchmarking the Solution
4. Going Further
5. Summary

1. How fortune Works
2. Getting Started
1. Defining the Arguments
2. Finding the Input Sources
3. Reading the Fortune Files
4. Randomly Selecting a Fortune
5. Printing Records Matching a Pattern
3. Solution
4. Going Further
5. Summary

1. How cal Works
2. Getting Started
1. Defining and Validating the Arguments
2. Writing the Program
3. Solution
4. Going Further
5. Summary

1. How ls Works
2. Getting Started
1. Defining the Arguments
2. Finding the Files
3. Formatting the Long Listing
4. Displaying Octal Permissions
5. Testing the Long Format
3. Solution
4. Notes from the Testing Underground
5. Going Further
6. Summary