Grokking Go
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Reading a File

Reading files in Go allows programs to retrieve and process stored data. Go provides multiple ways to read files using the os, ioutil (deprecated), and bufio packages. The most common functions used for reading files are:

  • os.ReadFile() → Reads the entire file at once.
  • bufio.NewScanner() → Reads a file line by line (efficient for large files).
  • os.Open() + Read() → Reads specific bytes from a file.

1. Reading an Entire File Using os.ReadFile()

The `os.ReadFile()

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