find is now working

find/.gitignore

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+find
+find.exe

find/Makefile

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+
+
+build:
+	go build .

find/go.mod

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+module lcthw.dev/go/go-coreutils/find
+
+go 1.25.3

find/main.go

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+package main
+
+import (
+  "fmt"
+  "flag"
+  "path/filepath"
+  "regexp"
+  "log"
+  "io/fs"
+)
+
+type Opts struct {
+	Name string
+	Type string
+	Print bool
+}
+
+func main() {
+	var opts Opts
+
+	flag.StringVar(&opts.Name, "name", "", "regex of file")
+	flag.StringVar(&opts.Type, "type", "f", "type to find")
+	flag.Parse()
+
+	re, err := regexp.Compile(opts.Name)
+	if err != nil { log.Fatal(err) }
+
+	if flag.NArg() == 0 {
+		log.Fatal("USAGE: find -name <regex> [-type d/f] <dir> [dir dir]")
+	}
+
+	for _, start := range flag.Args() {
+		filepath.WalkDir(start, func (path string, d fs.DirEntry, err error) error {
+			if re.MatchString(path) && opts.Print {
+				if opts.Type == "" {
+					fmt.Println(path)
+				} else if d.IsDir() && opts.Type == "d" {
+					fmt.Println(path)
+				} else if !d.IsDir() && opts.Type == "f" {
+					fmt.Println(path)
+				}
+			}
+
+			return nil
+		})
+	}
+}