os.stat information about a file or directory (file exists)

---

examples/file-stat/stat.go

package main

import (
    "fmt"
    "os"
)

func main() {
    if len(os.Args) != 2 {
        fmt.Printf("Usage %s FILENAME\n", os.Args[0])
        os.Exit(1)
    }
    var filename = os.Args[1]
    var st, err = os.Stat(filename)
    if err != nil {
        fmt.Printf("Error: %s\n", err)
        if os.IsNotExist(err) {
            fmt.Printf("IsNotExist\n")
        }
        os.Exit(1)
    }
    fmt.Println(st)
    fmt.Printf("Name: %s\n", st.Name())
    fmt.Printf("Size: %d\n", st.Size())
}

Error: stat hello/world: no such file or directory

If the directory where the file can be found is not executable by the user who runs this code, we'll get the following error:

Error: stat hello/world: permission denied