fork/exec . no such file or directory exit status 1

Question

I am using Go 1.10.2 on Mac (darwin/amd64) and facing this error. It's saying no such file or directory.

Here's my code,

func loop1(gor_name string, ras_ip string) {
    var a string
    var c string
    a = search_path()
    fmt.Printf("当前路径为", a)
    fmt.Println(os.Chdir(a))

    c = fmt.Sprintf("%s %s %s %s", "./goreplay  --input-file ", gor_name, " --input-file-loop --output-http ", ras_ip)
    fmt.Printf("c:  ", c)
    cmd := exec.Command(c)
    err := cmd.Run()
    if err != nil {
        log.Fatal(err)
    }
    channel <- 1

}

Thanks a lot for any suggestions.

user5728991 · Accepted Answer · 2018-05-11 05:24:23Z

27

The function signature for exec.Command is:

func Command(name string, args ...string) *Cmd

where name is the name of the program and args are the arguments. Try this:

cmd := exec.Command("./goreplay", "--input-file", gor_name, "--input-file-loop", "--output-http", ras_ip)

answered May 11, 2018 at 5:24

user5728991

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1 Comment

John Scott Stensland Over a year ago

as is shown no spaces are allowed in front or behind parms

Shubham Chadokar · Accepted Answer · 2021-06-17 14:13:24Z

0

This answer is just an information on @cerise-limon answer.

The exec command requires command and then the arguments.
The string of command and args will throw the same error.

Pass the command to exec following with the comma separated args.

answered Jun 17, 2021 at 14:13

Shubham Chadokar

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Comments

Vishrant · Accepted Answer · 2021-11-29 03:57:09Z

-1

The other way to do is:

type Client struct {
    logger *logrus.Entry
}

const shell = "/bin/bash"

// Execute executes the provided command
func (c *Client) Execute(command []string) (bool, error) {

    c.logger.Info("Executing command ", shell, " -c ", strings.Join(command, " "))

    output, err := exec.Command(shell, "-c", strings.Join(command, " ")).Output()

    if err != nil {
        return false, err
    }

    c.logger.Info(string(output))

    return true, nil
}

func GetBashClient() *Client {
    logger := logrus.NewEntry(logrus.StandardLogger())
    return &Client{logger: logger}
}

Now you can call

command := []string{
    "/usr/bin/<your script>.sh",
    args1,
    args2
}

GetBashClient().Execute(command)

answered Nov 29, 2021 at 3:57

Vishrant

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3 Comments

Vishrant Over a year ago

@CeriseLimón that is not correct, if you check the code, the arguments is passed as parameters to "<your script.sh>" which is executed in /bin/bash shell, and your script is responsible for handling what you want to do with the arguments.

Vishrant Over a year ago

I see what you are saying, but that's the contract between your_script.sh and go code, you can decide to pass named parameters.

Vishrant Over a year ago

Like I said you could use named parameter, you can establish the contract between yourscript.sh and the actual parameters being passed, ./yourscript.sh, --named_param1=a b, --named_param2=c, like explained above, it depends on your requirements and how you write arg parser in yourscript.sh. Hope that helps.

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