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Go Program to Get File Metadata
Go Program to Get File Details
This Go code is used to read the file details like metadata name, last modified timestamp, permission mode etc..
Getting information about files and directories is straightforward using os module.
This Go code uses os.Stat() function to return os.FileInfo object which is used to read the file metadata attributes.
package main
import (
"fmt"
"os"
)
func main() {
file, err := os.Stat("/etc/java/java.conf")
if err == nil {
fmt.Println("File name: ", file.Name())
fmt.Println("Size: ", file.Size(), " bytes")
fmt.Println("Direcory: ", file.IsDir())
fmt.Printf("Permission 9-bits: %s\n", file.Mode())
fmt.Printf("Permission 4-digits: %o\n", file.Mode())
fmt.Printf("Permission 3-digits: %o\n", file.Mode())
fmt.Println("File Last Modified: ", file.ModTime())
} else {
fmt.Println("Invalid file!")
}
}
Output:
$ go build file-metadata.go $ ./file-metadata File name: java.conf Size: 738 bytes Direcory: false Permission 9-bits: -rw-r--r-- Permission 4-digits: 644 Permission 3-digits: 644 File Last Modified: 2017-07-03 19:08:18 +0530 IST
IsDir is used to check whether file is directory or not.
Mode function is used to get the file permission and can be formatted using fmt.Printf function.
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