英文:
exec with double quoted argument
问题
我想使用exec包执行find Windows命令，但是Windows系统会进行一些奇怪的转义。
我有以下代码：
out, err := exec.Command("find", `"SomeText"`).Output()
但是这会抛出错误，因为Windows会将其转换为
find /SomeText"
有人知道为什么吗？我该如何使用exec包在Windows上执行find命令？
谢谢！
英文:
I want to execute find Windows command using exec package, but windows is doing some weird escaping.
I have something like:
out, err := exec.Command("find", `"SomeText"`).Output()
but this is throwing error because Windows is converting this to
find /SomeText"
Does anyone know why? How I can execute find on windows using exec package?
Thanks!
答案1
得分: 7
好的，以下是翻译好的内容：
package main
import (
"fmt"
"os/exec"
"syscall"
)
func main() {
cmd := exec.Command(`find`)
cmd.SysProcAttr = &syscall.SysProcAttr{}
cmd.SysProcAttr.CmdLine = `find "SomeText" test.txt`
out, err := cmd.Output()
fmt.Printf("%s\n", out)
fmt.Printf("%v\n", err)
}
很不幸，尽管在2011年添加了对此的支持，但它似乎还没有出现在文档中。（也许我只是不知道在哪里找。）
<details>
<summary>英文:</summary>
OK, it's a bit more complicated than you might have expected, but there *is* a solution:
package main
import (
"fmt"
"os/exec"
"syscall"
)
func main() {
cmd := exec.Command(`find`)
cmd.SysProcAttr = &syscall.SysProcAttr{}
cmd.SysProcAttr.CmdLine = `find "SomeText" test.txt`
out, err := cmd.Output()
fmt.Printf("%s\n", out)
fmt.Printf("%v\n", err)
}
Unfortunately, [although support for this was added in 2011][1], it doesn't appear to have made it into [the documentation][2] yet. (Although perhaps I just don't know where to look.)
[1]: https://github.com/golang/go/issues/1849
[2]: http://golang.org/pkg/os/exec/
</details>
# 答案2
**得分**: 0
FYI，运行：
```go
package main
import (
"fmt"
"os/exec"
)
func main() {
cmd := exec.Command("find", `"SomeText"`)
fmt.Printf("Path: %q, args[1]: %q\n", cmd.Path, cmd.Args[1])
}
在Unix系统上运行结果为：
Path: "/usr/bin/find", args[1]: "\"SomeText\""
在编译为Windows并在Win7上运行的结果为：
Path: "C:\\Windows\\system32\\find.exe", args[1]: "\"SomeText\""
两者看起来都是正确的。
在Windows交叉编译中添加out, err := cmd.Output()，对于fmt.Printf("%#v\n%v\n", err, err)，输出如下：
&exec.ExitError{ProcessState:(*os.ProcessState)(0xc0820046a0)}
exit status 1
但我想这只是因为find未能找到任何内容。
英文:
FYI, running:
package main
import (
"fmt"
"os/exec"
)
func main() {
cmd := exec.Command("find", `"SomeText"`)
fmt.Printf("Path: %q, args[1]: %q\n", cmd.Path, cmd.Args[1])
}
On unix gives:
Path: "/usr/bin/find", args[1]: "\"SomeText\""
And cross compiled to Windows and run on Win7 gives:
Path: "C:\\Windows\\system32\\find.exe", args[1]: "\"SomeText\""
Both look correct to me.
Adding out, err := cmd.Output() to the Windows cross-compile gives the following for fmt.Printf("%#v\%v\n", err, err):
&exec.ExitError{ProcessState:(*os.ProcessState)(0xc0820046a0)}
exit status 1
But I imagine that's just because find fails to find anything.
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