what commands are you talking about?
for everything, there is a command,
let's say you want to update so the command is ( apt-get update ) to upgrade ( apt-get upgrade)
to install something ( apt-get install (the app name )
you may check this list https://kalitut.com/basic-linux-commands/
but you should know you may find 1000 command for Linux that doesn't help you , the thing is you should know what you want