Why is bower and npm not working on the server?

Question

npm

joxi.ru/Vm67XL6fxzoyK2
Put the project on a test server (on Bitrix)
Downloaded the project, then you need to install bower, npm,
why don't you want to install it? Not normally, not globally

Answer 1

first you need to install bower itself,
if this command also swears, then npm is not installed

Answer 2

yum install npm
yum install bower
suggested this method, I went to install it on centos, then I’ll write back
how yes