英文:
google golang exec exit status 2 and 1
问题
我想在Go语言中执行Android SDK平台工具中的dexdump。
我已经设置了PATH变量。（我使用的是Ubuntu 12.04）
这是我的代码：
package mainimport ("bytes""fmt""log""os/exec")func main() {path, err := exec.LookPath("dexdump")if err != nil {log.Fatal(err)}fmt.Println(path)cmd := exec.Command(path)var out bytes.Buffercmd.Stdout = &outerr2 := cmd.Run()if err2 != nil {log.Fatal(err2)}fmt.Printf("%q\n", out.String())}
结果：
/home/gunwoo/android-sdk-linux/platform-tools/dexdump
2012/10/15 16:44:39 退出状态 2
退出状态 1
为什么Go找不到路径？
英文:
I want execute the dexdump in Android SDK platform-tools on Go language.
I already set the PATH variable. (I'm use Ubuntu 12.04)
Here is my code:
package mainimport ("bytes""fmt""log""os/exec")func main() {path, err := exec.LookPath("dexdump")if err != nil {log.Fatal(err)}fmt.Println(path)cmd := exec.Command(path)var out bytes.Buffercmd.Stdout = &outerr2 := cmd.Run()if err2 != nil {log.Fatal(err2)}fmt.Printf("%q\n", out.String())}
Result:
/home/gunwoo/android-sdk-linux/platform-tools/dexdump
2012/10/15 16:44:39 exit status 2
exit status 1
why go doesn't find the path?
答案1
得分: 6
你没有为exec.Run的dexdump命令提供任何参数，这可能会导致出现以下错误：
dexdump: 未指定文件dexdump: [-f] [-h] dexfile...-d : 反汇编代码段-f : 显示文件头的摘要信息-h : 显示文件头的详细信息-C : 解码（还原）低级符号名称-S : 仅计算大小
当你运行以下版本的程序时，你会得到什么输出？
package mainimport ("bytes""fmt""log""os/exec")func main() {path, err := exec.LookPath("dexdump")if err != nil {log.Fatal("LookPath: ", err)}fmt.Println(path)cmd := exec.Command(path)var out bytes.Buffercmd.Stdout = &outerr = cmd.Run()fmt.Printf("%s\n", out.String())if err != nil {log.Fatal("Run: ", err)}}
英文:
You don't provide any arguments for the exec.Run dexdump command, which possibly generates an error like:
dexdump: no file specifieddexdump: [-f] [-h] dexfile...-d : disassemble code sections-f : display summary information from file header-h : display file header details-C : decode (demangle) low-level symbol names-S : compute sizes only
What output do you get when you run the following version of the program?
package mainimport ("bytes""fmt""log""os/exec")func main() {path, err := exec.LookPath("dexdump")if err != nil {log.Fatal("LookPath: ", err)}fmt.Println(path)cmd := exec.Command(path)var out bytes.Buffercmd.Stdout = &outerr = cmd.Run()fmt.Printf("%s\n", out.String())if err != nil {log.Fatal("Run: ", err)}}
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