golang write string to file
f, err := os.OpenFile(filename, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)
if err != nil {
panic(err)
}
defer f.Close()
if _, err = f.WriteString(text); err != nil {
panic(err)
}golang write string to file
f, err := os.OpenFile(filename, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)
if err != nil {
panic(err)
}
defer f.Close()
if _, err = f.WriteString(text); err != nil {
panic(err)
}golang writefile example
err := os.WriteFile("index.txt", []byte("example writefile using go"), os.ModePerm)
if err != nil {
fmt.Println(err)
}
res, _ := os.ReadFile("index.txt")
fmt.Println(string(res))golang bufio write to file
package main
import (
"bufio"
"log"
"os"
)
func main() {
sampledata := []string{"Lorem ipsum dolor sit amet, consectetur adipiscing elit.",
"Nunc a mi dapibus, faucibus mauris eu, fermentum ligula.",
"Donec in mauris ut justo eleifend dapibus.",
"Donec eu erat sit amet velit auctor tempus id eget mauris.",
}
file, err := os.OpenFile("test.txt", os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
if err != nil {
log.Fatalf("failed creating file: %s", err)
}
datawriter := bufio.NewWriter(file)
for _, data := range sampledata {
_, _ = datawriter.WriteString(data + "n")
}
datawriter.Flush()
file.Close()
}Copyright © 2021 Codeinu
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