Question

如果我在目录A并运行GO代码，我需要将目录B中的文件复制到目录C，该怎么办？我尝试添加cmd.Dir =＆＃34; B＆＃34;但它可以复制＆＃34; B＆＃34;目录，但当我尝试目录的完整路径＆＃34; C＆＃34;它抛出错误＆＃34;退出状态1＆＃34;

基本代码示例

目前在目录A中，位置为＆＃34; / var / A＆＃34; cmd：= exec.Command（＆＃34; cp＆＃34;，＆＃34; /var/C/c.txt"，＆＃34; / var / B /＆＃34;）错误：= cmd.Run（）

Answer 1

"os/exec"是用于运行外部程序的Go包，其中包括Linux实用程序。

// The command name is the first arg, subsequent args are the
// command arguments.
cmd := exec.Command("tr", "a-z", "A-Z")
// Provide an io.Reader to use as standard input (optional)
cmd.Stdin = strings.NewReader("some input")
// And a writer for standard output (also optional)
var out bytes.Buffer
cmd.Stdout = &out
// Run the command and wait for it to finish (the are other
// methods that allow you to launch without waiting.
err := cmd.Run()
if err != nil {
    log.Fatal(err)
}
fmt.Printf("in all caps: %q\n", out.String())

如何使用＆＃34; os / exec＆＃34;将文件从一个目录复制到另一个目录包中GO

1 个答案: