Create unified diff format
Создать унифицированный формат diff
创建统一差异格式
Einheitliches Diff-Format erstellen
Créer un format diff unifié
Crear formato diff unificado
Criar formato diff unificado
統一差分フォーマットを作成
통합 diff 형식 생성
إنشاء تنسيق diff موحد
diff -u old.txt new.txt