How to go exec and pass user input required by the command on run-CodePudding

golang expert, I'm relatively new to go exec stuff and trying to replicate the below command in golang exec

root@e4187cadd9ed:/opt/sample# ../solana transfer -k ../id.json  --from  prompt://?key=0/2 DE53G9MjqzX8WtexjdySsqogsTgGPD8kzAZFVsQce5fK  0.3  --url devnet
[from] seed phrase: 
[from] If this seed phrase has an associated passphrase, enter it now. Otherwise, press ENTER to continue:

The program will ask for a seed phrase that needs to be passed so that the program will continue and this can't be passed in the argument.

cmd := exec.Command(app, arg0, arg1, arg2, arg3,arg4,arg5,arg6)

    subStdin, err := cmd.StdinPipe()
    // check err
    defer subStdin.Close()
    io.WriteString(subStdin, "found post practice action leave spread impact chair skate coach kingdom coral")

after that progmram except one more input that I don't know hot to write it in go lang and continute the program

How to pass this particular value dynamically using go lang ?

package main

//solana transfer --from  prompt://?key=0/2 DE53G9MjqzX8WtexjdySsqogsTgGPD8kzAZFVsQce5fK  0.3  --url devnet

import (
    "bytes"
    "fmt"
    "io"
    "os/exec"
)

func main() {
    app := "../solana"

    arg0 := "transfer"
    arg1 := "--from"
    arg2 := "prompt://?key=0/2"
    arg3 := "DE53G9MjqzX8WtexjdySsqogsTgGPD8kzAZFVsQce5fK"
    arg4 := "0.3"
    arg5 := "--url"
    arg6 := "devnet"

    cmd := exec.Command(app, arg0, arg1, arg2, arg3,arg4,arg5,arg6)

    subStdin, err := cmd.StdinPipe()
    // check err
    defer subStdin.Close()
    io.WriteString(subStdin, "abx sd sda sd dsa sd sad sda dsa coach asd dds")
    var out bytes.Buffer
    var stderr bytes.Buffer
    cmd.Stdout = &out
    cmd.Stderr = &stderr
    err = cmd.Run()
    if err != nil {
        fmt.Println(fmt.Sprint(err)   ": "   stderr.String())
        return
    }
    fmt.Println("Result: "   out.String())
    stdout, err := cmd.Output()
    fmt.Println(string(stdout))
}

The go program which is written takes all the user input but exit in the user prompt any pointer will be great help here.

CodePudding user response：

Maybe flags could be useful -

package flag implements command-line flag parsing

Usage example

CodePudding user response：

You can us os.Args for that.

os.Args[1] is the first argument following the app (os.Args[0]) and so on

https://gobyexample.com/command-line-arguments