Why Does `exec.Command()` Return Exit Status 1 When Running `sudo` Commands in Go?

Os Exec Sudo Command in Go

Background

While exploring Go and goroutines, users may encounter difficulties executing commands with the format:

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

Question

• Why does the command return "exit status 1"?
• How to obtain a more detailed error message?

Answer

• Cause of Exit Status 1: The exec.Command() function executes the specified program directly. However, the given command involves multiple programs connected through a shell script. To execute shell scripts, use the following syntax:

cmd := exec.Command("/bin/sh", "-c", "sudo find ...")

• Detailed Error Messages: Obtain more detailed error messages by running the command directly in the terminal. If it fails, check for any error messages in the terminal output.

Code Modifications

Here's the modified code:

package main

import (
    "fmt"
    "os/exec"
)

func main() {
    cmd := exec.Command("/bin/sh", "-c", "sudo find /folder -type f | while read i; do sudo -S chmod 644 \"\"; done")
    out, err := cmd.CombinedOutput()
    if err != nil {
        fmt.Printf("Error: %s\nOutput: %s", err, out)
    }
}

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