Go语言执行系统命令行命令(转)

 1 package main
 2 
 3 import (
 4 "os"
 5 "os/exec"
 6 "fmt"
 7 "flag"
 8 "strings"
 9 )
10 
11 func main() {
12 command := flag.String("cmd", "pwd", "Set the command.")
13 args := flag.String("args", "", "Set the args. (separated by spaces)")
14 flag.Usage = func() {
15 fmt.Fprintf(os.Stderr, "Usage: %s [-cmd <command>] [-args <the arguments (separated by spaces)>]\n", os.Args[0])
16  flag.PrintDefaults()
17  }
18  flag.Parse()
19 fmt.Println("Command: ", *command)
20 fmt.Println("Arguments: ", *args)
21 var argArray []string
22 if *args != "" {
23 argArray = strings.Split(*args, " ")
24 } else {
25 argArray = make([]string, 0)
26  }
27 cmd := exec.Command(*command, argArray...)
28 buf, err := cmd.Output()
29 if err != nil {
30 fmt.Fprintf(os.Stderr, "The command failed to perform: %s (Command: %s, Arguments: %s)", err, *command, *args)
31 return
32  }
33 fmt.Fprintf(os.Stdout, "Result: %s", buf)
34 }

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