Golang : Split strings into command line arguments



Tags : golang shell-command exec split

Problem :

You have a string and you want to split the string into command line arguments in Golang.

Solution :

Use the strings.Split() function to break the string into a splice with each word as element.

For example :

 package main

 import (
 "fmt"
 "os/exec"
 "strings"
 )

 func main() {
 cmdLine := "ls -la"

 //split into a splice
 splitArgs := strings.Split(cmdLine, " ")

 fmt.Println("The argument is " + cmdLine)

 fmt.Println("The first argument is " + splitArgs[0])
 fmt.Println("The second argument is " + splitArgs[1])

 cmd := exec.Command(splitArgs[0], splitArgs[1:]...)

 // capture the exec.Command output
 output, err := cmd.Output()

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

 fmt.Println(string(output))

 }

Sample output :

The argument is ls -la

The first argument is ls

The second argument is -la

total 101320

drwxr-xr-x+ 272 sweetlogic staff 9248 Mar 26 11:27 .

drwxr-xr-x 5 root admin 170 Oct 20 17:59 ..

-r-------- 1 sweetlogic staff 7 Oct 24 11:10 .CFUserTextEncoding

-rw-r--r--@ 1 sweetlogic staff 12292 Mar 25 17:36 .DS_Store

  See also : Golang : Execute shell command



Tags : golang shell-command exec split

By Adam Ng

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