Golang *File points to a file or directory ?
In this tutorial, we will learn how to find out if the *File pointer is pointing to a file or directory. The codes are self explanatory
fileordir.go
package main
import (
"fmt"
"os"
"flag"
)
func main() {
flag.Parse()
fileordir := flag.Arg(0) // get first argument
file, err := os.Open(fileordir)
if err != nil {
fmt.Println(err)
return
}
defer file.Close()
fileInfo, err := file.Stat()
if err != nil {
fmt.Println(err)
return
}
switch mode := fileInfo.Mode(); {
case mode.IsDir():
fmt.Println(fileordir + " is a directory")
case mode.IsRegular():
fmt.Println(fileordir + " is a file")
}
}
localhost:~ admin$ go run fileordir.go /Users/admin/for
/Users/admin/for is a file
localhost:~ admin$ go run fileordir.go /Users/admin
/Users/admin is a directory
Hope this can be useful.
See also : Golang : Copy directory - including sub-directories and files
By Adam Ng
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