works

.gitignore

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+replacerConfig.txt

README.md

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+# goStringsReplacer
+
+Replaces the strings configured on the replacerConfig.txt, in all the files in the directory and subdirectories configured
+
+
+replacerConfig.txt example:
+```
+wordOriginal1 wordToReplace1
+wordOriginal2 wordToReplace2
+potatoes carrot
+green blue
+Hola Hello
+zumo juice
+```

main.go

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+package main
+
+import (
+	"bufio"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"strings"
+)
+
+const rawFolderPath = "./originalFiles"
+const newFolderPath = "./newFiles"
+
+func check(err error) {
+	if err != nil {
+		fmt.Println(err)
+	}
+}
+
+func replaceFromTable(table map[string]string, originalContent string) string {
+	var newContent string
+	newContent = originalContent
+	for i := 0; i < len(table); i++ {
+		//first, get the map keys
+		var keys []string
+		for key, _ := range table {
+			keys = append(keys, key)
+		}
+		//now, replace the keys with the values
+		for i := 0; i < len(keys); i++ {
+			newContent = strings.Replace(newContent, keys[i], table[keys[i]], -1)
+		}
+	}
+	return newContent
+
+}
+func readConfigTable(path string) map[string]string {
+	table := make(map[string]string)
+	f, err := os.Open(path)
+	check(err)
+	scanner := bufio.NewScanner(f)
+	for scanner.Scan() {
+		currentLine := scanner.Text()
+		if currentLine != "" {
+			val1 := strings.Split(currentLine, " ")[0]
+			val2 := strings.Split(currentLine, " ")[1]
+			table[val1] = val2
+		}
+	}
+	return table
+}
+
+func readFile(folderPath string, filename string) string {
+	dat, err := ioutil.ReadFile(folderPath + "/" + filename)
+	check(err)
+	return string(dat)
+}
+
+func writeFile(path string, newContent string) {
+	err := ioutil.WriteFile(path, []byte(newContent), 0644)
+	check(err)
+}
+
+func parseDir(folderPath string, newDir string, table map[string]string) {
+	files, _ := ioutil.ReadDir(folderPath)
+	for _, f := range files {
+		fileNameSplitted := strings.Split(f.Name(), ".")
+		if len(fileNameSplitted) == 1 {
+			newDir := newDir + "/" + f.Name()
+			oldDir := rawFolderPath + "/" + f.Name()
+			if _, err := os.Stat(newDir); os.IsNotExist(err) {
+				_ = os.Mkdir(newDir, 0700)
+			}
+			parseDir(oldDir, newDir, table)
+		} else {
+			fileContent := readFile(folderPath, f.Name())
+			newContent := replaceFromTable(table, fileContent)
+			writeFile(newDir+"/"+f.Name(), newContent)
+			fmt.Println(newDir + "/" + f.Name())
+		}
+	}
+}
+
+func main() {
+	table := readConfigTable("replacerConfig.txt")
+	fmt.Println(table)
+	parseDir(rawFolderPath, newFolderPath, table)
+}

replacerConfigDEMO.txt

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+wordOriginal1 wordToReplace1
+wordOriginal2 wordToReplace2
+potatoes carrot
+green blue
+Hola Hello
+zumo juice