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what are some advanced I/O operations in Go


Advanced I/O operations in Go include:

1. Buffered I/O with `bufio` Package:

- Buffered Readers: Use `bufio.NewReader` to create a buffered reader that can handle large amounts of data efficiently.
- Buffered Writers: Use `bufio.NewWriter` to create a buffered writer that can handle large amounts of data efficiently.

2. Tee Readers:

- TeeReader: Use `io.TeeReader` to split the input data into two streams. This is useful when you need to process the data in two different ways.

3. Piping Data:

- Pipe: Use `io.Pipe` to create a synchronous in-memory pipe that can be used to connect code expecting an `io.Reader` with code expecting an `io.Writer`.

4. Reading and Writing Files:

- Reading from Files: Use `os.Open` to open a file in read-only mode and then use `bufio.NewReader` to create a reader.
- Writing to Files: Use `os.Create` or `os.OpenFile` to create or open a file in write mode and then use `bufio.NewWriter` to create a writer.

5. Handling Concurrency:

- Safe File Handling: Use `defer` to ensure that file handles are properly closed to avoid resource leaks.

6. Using `io.Copy`:

- Copying Data: Use `io.Copy` to copy data from one reader to another writer.

7. Using `io.CopyN`:

- Copying Data with a Limit: Use `io.CopyN` to copy a limited amount of data from one reader to another writer.

8. Using `io.ReadAtLeast`:

- Reading at Least a Certain Amount: Use `io.ReadAtLeast` to read at least a certain amount of data from a reader.

9. Using `io.ReadFull`:

- Reading the Full Amount: Use `io.ReadFull` to read the full amount of data from a reader.

10. Using `io.WriteString`:

- Writing a String: Use `io.WriteString` to write a string to a writer.

11. Using `io.WriteString` with a Buffer:

- Writing a String with a Buffer: Use `io.WriteString` with a buffer to write a string to a writer efficiently.

12. Using `io.MultiReader`:

- Reading from Multiple Sources: Use `io.MultiReader` to read from multiple sources.

13. Using `io.MultiWriter`:

- Writing to Multiple Destinations: Use `io.MultiWriter` to write to multiple destinations.

14. Using `io.PipeLine`:

- Creating a Pipeline: Use `io.PipeLine` to create a pipeline of readers and writers.

15. Using `io.ReadFull` with a Buffer:

- Reading the Full Amount with a Buffer: Use `io.ReadFull` with a buffer to read the full amount of data from a reader efficiently.

These advanced I/O operations in Go provide more flexibility and control over how data is read and written, making it easier to handle complex I/O tasks efficiently.

Citations:
[1] https://www.developer.com/languages/input-output-golang/
[2] https://www.educative.io/courses/advanced-techniques-in-go-programming/file-i-o
[3] https://www.codingexplorations.com/blog/mastering-io-readers-writers-go
[4] https://dev.to/romulogatto/file-io-in-go-488d
[5] https://hyperskill.org/learn/step/14527