How to Work with File Permissions in Go

File Io

2026-04-17T12:05:42+00:00

Use os.Stat to read and os.Chmod to change file permissions in Go.

Use the os package to read file permissions with os.Stat and modify them with os.Chmod, passing a fs.FileMode value.

package main

import (
	"fmt"
	"os"
)

func main() {
	info, err := os.Stat("file.txt")
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Println("Current permissions:", info.Mode().Perm())

	err = os.Chmod("file.txt", 0600)
	if err != nil {
		fmt.Println(err)
		return
	}
}