How to check if a file exists in Golang

In this tutorial, you will learn how you can check if a file with a given file path exists in Golang 1.16

To check if a file exists, we use the os.Stat function, which returns a FileInfo describing the named file. If there is an error, the FileInfo will be of type *PathError.

Example

package main

import (
    "errors"
    "fmt"
    "io/fs"
    "os"
)

func main () {
    if _, err:= os.Stat("./examples/file.txt"); errors.Is(err, fs.ErrNotExist){
        fmt.Print(err.Error())
    } else {
        fmt.Print("file exists")
    }
}

Related Solutions

• How to read a text file in Golang

• How check if a string contains a substring in Golang

• How to create a map in Golang

• How to initialize a slice in Golang