Golang : Create and resolve(read) symbolic links




Creating new symbolic link for a file and resolving(read) symbolic link back to the origin file is pretty straight forward in Golang with the os.Symlink and os.Readlink functions.

Here is an example on how to create and resolve symbolic link.

 package main

 import (
 "fmt"
 "os"
 )

 func main() {

 // create a new symbolic or "soft" link
 err := os.Symlink("file.txt", "file-symlink.txt")
 if err != nil {
 fmt.Println(err)
 os.Exit(1)
 }

 // resolve symlinks

 fileInfo, err := os.Lstat("file-symlink.txt")

 if err != nil {
 fmt.Println(err)
 os.Exit(1)
 }

 if fileInfo.Mode()&os.ModeSymlink != 0 {
 originFile, err := os.Readlink(fileInfo.Name())

 if err != nil {
 fmt.Println(err)
 os.Exit(1)
 }

 fmt.Println("Resolved symlink to : ", originFile)
 }

 }

Sample output :

Resolved symlink to : file.txt

References :

http://golang.org/pkg/os/#Readlink

http://golang.org/pkg/os/#Symlink





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.


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