错误执行命令，其中包含奇怪的字符

Question

I'm trying to call the builtin function find to print out the contents of all the text files in a subfolder my-files. I understand that there are easier ways to do this, but I need to get it working with exec. I suspect that exec is not handling quotes correctly. My initial code is as follows:

fullCmd := "find my-files -maxdepth 1 -type f"
cmdParts := strings.Split(fullCmd, " ")
output, _ := exec.Command(cmdParts[0], cmdParts[1:]...).CombinedOutput()
fmt.Println("Output is...")
fmt.Println(string(output))

This works fine and prints out

Output is...
my-files/goodbye.txt
my-files/badfile.java
my-files/hello.txt

However, when I then try to start adding 'weirder' characters, it falls apart. If I change the first line to

fullCmd := "find my-files -maxdepth 1 -type f -iname \"*.txt\""

Nothing prints out. Worse, if I change the line to:

fullCmd := "find my-files -maxdepth 1 -type f -exec cat {} \\;"

Find errors out with this stdout:

Output is...
find: -exec: no terminating ";" or "+"

I thought I was correctly escaping the neccesary characters, but I guess not. Any ideas on how to get the command to work? For reference, this command does exactly what I want when entered directly on the command line:

find my-files -maxdepth 1 -type f -iname "*.txt" -exec cat {} \;

Answer 1

It has nothing to do with "weird" characters. \"*.txt\"" is quoted for your shell, but you're not running this in your shell. It should just be *.txt, which is the actual argument you want find to receive as the value for -iname:

fullCmd := "find my-files -maxdepth 1 -type f -iname *.txt"

Though, because this is not a shell, I would strongly recommend against this approach of building a shell-like command as a single string and splitting on spaces; just provide the args as an array in the first place to avoid confusion like this.