Go中的Os Exec Sudo命令

Os Exec Sudo Command in Go

在熟悉Go和goroutine的过程中，我遇到了执行命令的障碍。这些命令的格式为：

1	sudo find /folder -type f \| while read i; do sudo -S chmod 644"$i"; done

使用从如何在Golang中执行系统命令(带有未知参数)中获取的代码，我正在尝试执行此命令，但我相信由于第一个参数为sudo而未执行，这可能是错误的。我只有两个问题。

当这些命令无法运行时，我将返回"退出状态1"，是否有比我正在做的事情更详细的错误信息？问题二，为什么我使用此脚本会获得"退出状态1"？这是怎么回事？

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package main

import (
"bufio"
"fmt"
"os"
"os/exec"
"strings"
"sync"
)

func ExeCmd(cmd string, wg *sync.WaitGroup) {
parts := strings.Fields(cmd)
head := parts[0]
// Head at this point is"sudo"
parts = parts[1:len(parts)]
out, err := exec.Command(head,parts...).Output()
if err != nil {
fmt.Printf("%s\
", err)
}
fmt.Printf("%s\
", out)
wg.Done() // Signal to WaitGroup goroutine finished
}

func InArray(a []string, e string) bool {
for _, x := range a {
if x == e {
return true
fmt.Print("True")
}
}
return false
}

func main() {
exec.Command("sudo ls > /dev/null") // Get sudo password just once, doesn't seem to work with Go
wg := new(sync.WaitGroup)
reader := bufio.NewReader(os.Stdin)
fdbslices := []string{"f","d","b","files","directories","both"}
commands := []string{}
fdb :=""
filep :=""
dirp :=""

// Grab Path
fmt.Print("Path:")
findpath, _ := reader.ReadString('\
')
findpath = strings.ToLower(strings.Trim(findpath,"\
"))

// Grab Files, Directories, or Both
for {
fmt.Print("Files, Directories, or Both:")
fdb, _ = reader.ReadString('\
')
fdb = strings.ToLower(strings.Trim(fdb,"\
"))
if InArray(fdbslices, fdb) == true { break }
}

// Build commands string, these come out as they should
for {
if fdb =="f" || fdb =="files" {
fmt.Print("Permissions for Files:")
filep, _ = reader.ReadString('\
')
filep = strings.Trim(filep,"\
")
commands = append(commands,"sudo find" + findpath +" -type f | while read i; do sudo -S chmod" + filep +" "$i"; done")
}
if fdb =="d" || fdb =="directories" {
fmt.Print("Permissions for Directories:")
dirp, _ = reader.ReadString('\
')
dirp = strings.Trim(dirp,"\
")
commands = append(commands,"sudo find" + findpath +" -type d | while read i; do sudo -S chmod" + dirp +" "$i"; done")
}
if fdb =="b" || fdb =="both" {
fmt.Print("Permissions for Files:")
filep, _ = reader.ReadString('\
')
filep = strings.Trim(filep,"\
")
commands = append(commands,"sudo find" + findpath +" -type f | while read i; do sudo -S chmod" + filep +" "$i"; done")
fmt.Print("Permissions for Directories:")
dirp, _ = reader.ReadString('\
')
dirp = strings.Trim(dirp,"\
")
commands = append(commands,"sudo find" + findpath +" -type d | while read i; do sudo -S chmod" + dirp +" "$i"; done")
}
break
}

// Execute Commands
for _, str := range commands {
wg.Add(1)
fmt.Print("Doing:" + str +"\
\
")
go ExeCmd(str, wg)
}

wg.Wait()
}

示例终端输出：

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Path: test
Files, Directories, or Both: b
Permissions for Files: 644
Permissions for Directories: 755
Doing: find test -type f | while read i; do sudo -S chmod 644"$i"; done
Doing: find test -type d | while read i; do sudo -S chmod 755"$i"; done
exit status 1

exit status 1

谢谢您的时间。