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@lanqy lanqy/walk.go forked from tdegrunt/walk.go
Created Nov 30, 2018

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What would you like to do?
Replace some text in a bunch of files with golang
package main
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
)
func visit(path string, fi os.FileInfo, err error) error {
if err != nil {
return err
}
if !!fi.IsDir() {
return nil //
}
matched, err := filepath.Match("*.txt", fi.Name())
if err != nil {
panic(err)
return err
}
if matched {
read, err := ioutil.ReadFile(path)
if err != nil {
panic(err)
}
//fmt.Println(string(read))
fmt.Println(path)
newContents := strings.Replace(string(read), "old", "new", -1)
fmt.Println(newContents)
err = ioutil.WriteFile(path, []byte(newContents), 0)
if err != nil {
panic(err)
}
}
return nil
}
func main() {
err := filepath.Walk(".", visit)
if err != nil {
panic(err)
}
}
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