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rename all files in folder; split "_" the filename and remove the last part
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| // go build rename_files.go | |
| package main | |
| import ( | |
| "fmt" | |
| "os" | |
| "path/filepath" | |
| "strings" | |
| ) | |
| func main() { | |
| // Check if the directory path is provided as an argument | |
| if len(os.Args) < 2 { | |
| fmt.Println("Usage: go run rename_files.go <directory-path>") | |
| return | |
| } | |
| // Get the directory path from the command-line argument | |
| dir := os.Args[1] | |
| // Open the directory | |
| files, err := os.ReadDir(dir) | |
| if err != nil { | |
| fmt.Println("Error reading directory:", err) | |
| return | |
| } | |
| // Iterate over the files in the directory | |
| for _, file := range files { | |
| if file.IsDir() { | |
| continue // Skip directories | |
| } | |
| oldName := file.Name() | |
| ext := filepath.Ext(oldName) // Get the file extension | |
| base := strings.TrimSuffix(oldName, ext) // Get the base name without the extension | |
| parts := strings.Split(base, "_") // Split the base name by "_" | |
| if len(parts) > 1 { | |
| newBase := strings.Join(parts[:len(parts)-1], "_") // Join all parts except the last one | |
| newName := newBase + ext // Construct the new file name with the extension | |
| oldPath := filepath.Join(dir, oldName) | |
| newPath := filepath.Join(dir, newName) | |
| // Rename the file | |
| err := os.Rename(oldPath, newPath) | |
| if err != nil { | |
| fmt.Println("Error renaming file:", err) | |
| } else { | |
| fmt.Printf("Renamed: %s -> %s\n", oldName, newName) | |
| } | |
| } | |
| } | |
| } |
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