Replace uniqrs with gouniq

replaced binary unqirs with a plattform independent golang rewrite.
gouniq works removes duplicate lines from an unsorted text file thus maintaining the original order of lines

tools/go/gouniq/gouniq.go

@@ -0,0 +1,75 @@
+package main
+
+import (
+	"bufio"
+	"flag"
+	"fmt"
+	"hash/fnv"
+	"log"
+	"os"
+)
+
+func hashLine(s string) uint32 {
+	hasher := fnv.New32a()
+	hasher.Write([]byte(s))
+	return hasher.Sum32()
+}
+
+func main() {
+	// Define command line flags
+	reverse := flag.Bool("d", false, "Print only lines that appear more than once.")
+	help := flag.Bool("h", false, "Display help and usage information.")
+	flag.Usage = func() {
+		fmt.Fprintf(flag.CommandLine.Output(), "Usage of %s:\n", os.Args[0])
+		fmt.Println("This program reads from a file or standard input, deduplicates lines, and outputs the results.")
+		fmt.Println("Options:")
+		flag.PrintDefaults()
+		fmt.Println("Example usage:")
+		fmt.Println("\t", os.Args[0], "[options] [filename]")
+		fmt.Println("\t", os.Args[0], "-d filename # Only print duplicates")
+		fmt.Println("\t", "cat /some/text/file |", os.Args[0], "# Read from standard input")
+	}
+	flag.Parse()
+
+	// Check for help flag
+	if *help {
+		flag.Usage()
+		os.Exit(0)
+	}
+
+	// Detemine the input source (file or stdin)
+	inputSource := os.Stdin
+	var err error
+	if flag.NArg() > 0 {
+		inputSource, err = os.Open(flag.Args()[0])
+		if err != nil {
+			log.Fatalf("Failed to open file: %v\n", err)
+		}
+		defer inputSource.Close()
+	}
+	seenLines := make(map[uint32]int)
+	scanner := bufio.NewScanner(inputSource)
+
+	//Readin lines
+	for scanner.Scan() {
+		line := scanner.Text()
+		hash := hashLine(line)
+		seenLines[hash]++
+
+		if *reverse {
+			// Print only lines that appear more than once
+			if seenLines[hash] > 1 {
+				fmt.Println(line)
+			}
+		} else {
+			// Normal mode, print only unique lines
+			if seenLines[hash] == 1 {
+				fmt.Println(line)
+			}
+		}
+	}
+	//Check for errors during scanning
+	if err := scanner.Err(); err != nil {
+		log.Fatalf("Failed to read input: %v\n", err)
+	}
+}