> For the complete documentation index, see [llms.txt](https://trizen.gitbook.io/sidef-lang/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://trizen.gitbook.io/sidef-lang/programming_tasks/g/globally_replace_text_in_several_files.md).

# Globally replace text in several files

```ruby
var names = %w(
                a.txt
                b.txt
                c.txt
              )
 
names.map{ File(_) }.each { |file|
    say file.edit { |line|
        line.gsub("Goodbye London!", "Hello New York!")
    }
}
```