doukuang1897
doukuang1897
2017-05-26 17:14
浏览 593
已采纳

Golang为CMD执行cd命令

I want to use golang and exec library to go to a certain path "c:\" and run a .exe file.

when i run my go code it gives me:

exec: "cd:/": file does not exist

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我想使用golang和exec库转到某个路径“ c:\”并运行.exe 文件。

当我运行我的go代码时,它会给我:

exec:“ cd:/”:文件不存在

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2条回答 默认 最新

  • douzuanze0486
    douzuanze0486 2017-05-26 18:23
    已采纳

    The cd command is a builtin of your shell, whether bash, cmd.exe, PowerShell, or otherwise. You would not exec a cd command and then exec the program you want to run. Instead, you want to set the Dir of the Cmd you're going to run to the directory containing the program:

    package main
    
    import (
        "fmt"
        "log"
        "os/exec"
    )
    
    func main() {
        cmd := exec.Command("program") // or whatever the program is
        cmd.Dir = "C:/usr/bin"         // or whatever directory it's in
        out, err := cmd.Output()
        if err != nil {
            log.Fatal(err)
        } else {
            fmt.Printf("%s", out);
        }
    }
    

    See the Cmd documentation for more information. Alternatively, you could use os/Chdir to change the working directory before running the program.

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  • dtc66318
    dtc66318 2017-05-26 17:35

    You specify the initial working directory to run the command in the Cmd object:

    cmd.Dir = "C:\\"
    

    See the documentation on the Cmd struct for more details.

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