在Golang中将管道串转换为命令的STDIN(Pipe string into STDIN of command in Golang)

在Golang中将管道串转换为命令的STDIN(Pipe string into STDIN of command in Golang)

我想在Golang中复制下面的subprocess.run函数调用。 什么是正确的方法来做到这一点？

subprocess.run(['kinit', username], input=password.encode())

到目前为止，我已经想出了如何使用exec.Command来运行外部命令，但令我困惑的是将字符串作为输入传递给该命令的STDIN 。 Python的subprocess.run有一个方便的input参数来处理这个问题，我怎样才能在Golang中实现类似的结果？

I want to replicate the following subprocess.run function call in Golang. What would be the correct way to do it?

subprocess.run(['kinit', username], input=password.encode())

So far, I've figured out how to use exec.Command to run external commands, but what's confusing me is passing strings as input to STDIN of that command. Python's subprocess.run has a handy input parameter that takes care of this, how can I achieve similar results in Golang?

最满意答案

我想出了如何去做。

package main import "os/exec" import "strings" func main() { cmd := exec.Command("kinit", username) cmd.Stdin = strings.NewReader(password) err := cmd.Run() }

Command对象的Stdin属性是STDIN管道，我们可以将其设置为包含输入字符串的strings.NewReader对象，以达到与问题中提到的Python剪切相同的效果。

I figured out how to do it.

package main import "os/exec" import "strings" func main() { cmd := exec.Command("kinit", username) cmd.Stdin = strings.NewReader(password) err := cmd.Run() }

The Stdin attribute of the Command object is the STDIN pipe, we can set it to a strings.NewReader object containing the input string to achieve the same effect as of the Python snipped mentioned in the question.