Writing files

Context

Write files using os.WriteFile (entire content) or os.Create + io.WriteString (incremental). Always close files after writing.

Example

Write a string to a file.

Code example

package main

import (
    "fmt"
    "os"
)

func main() {
    content := []byte("Hello, file!")
    err := os.WriteFile("output.txt", content, 0644)
    if err != nil {
        fmt.Println("Error:", err)
        return
    }
    fmt.Println("File written successfully")
}

Output

File written successfully

Useful links

• os.WriteFile
• os.Create