How to do find and replace from console?

Question

linux

Hello!
Source:

<span class="biger" style="direction: ltr; text-align: left">
This is the home page for the HelloWorld Web application.</span>
 Это домашняя страница веб-приложения HelloWorld.</span>

To be removed from the text:

<span class="biger" style="direction: ltr; text-align: left">
This is the home page for the HelloWorld Web application.</span>

Tried with sed but unfortunately sed only reads line by line((((

Answer 1

A bit hacky, but working:

cat test_file.txt | tr '\n' ' ' | sed 's/<span[^<]*<\/span>//'