Golang : Check to see if *File is a file or directory
Sometimes, we need to write codes that is robust and flexible enough to handle different situation. For example, if a program is going to open up a directory or file. In this simple tutorial, we will learn how to handle the situation when opening up a file or directory with os.Open()
function. We will use the FileInfo.Mode()
function to determine if the object that we opened is a file or directory.
package main
import (
"os"
"fmt"
)
func main() {
object := "./FileDir" // this could be file or directory
fdir, err := os.Open(object)
if err != nil {
fmt.Println(err)
return
}
defer fdir.Close()
finfo, err := fdir.Stat()
if err != nil {
fmt.Println(err)
return
}
switch mode := finfo.Mode(); {
case mode.IsDir():
fmt.Println("object is a directory")
case mode.IsRegular():
fmt.Println("object is a file")
}
}
Hope this tutorial can be useful to you. Remember to check out the SEE ALSO below.
Reference :
See also : Golang : Read directory content with os.Open
By Adam Ng
IF you gain some knowledge or the information here solved your programming problem. Please consider donating to the less fortunate or some charities that you like. Apart from donation, planting trees, volunteering or reducing your carbon footprint will be great too.
Advertisement
Tutorials
+11.1k Golang : Reverse IP address for reverse DNS lookup example
+4.3k Unix/Linux : Get reboot history or check when was the last reboot date
+9.2k How to tell if a binary(executable) file or web application is built with Golang?
+2.9k Javascript : Empty an array example
+9.7k Get form post value in Go
+11.6k Golang: Pad right or print ending(suffix) zero or spaces in fmt.Printf example
+6.7k Your page has meta tags in the body instead of the head
+15.3k Golang : Linked list example
+3.6k Python : Convert(cast) bytes to string example
+3.3k Golang : Customize scanner.Scanner to treat dash as part of identifier
+36.7k Golang : How to read CSV file
+6k Golang : Configure Apache and NGINX to access your Go service example