unix - Piping parts of a file to a command that requires multiple inputs -

While doing some things in my Unix shell, I would like to pip a part of a file in a particular command like this:

  cut -f1 file1 | I like this because it means that I do not have to put the other file entirely for column 1 of  file1 <1 I / O   
 code>.  
 However, when I want to make an order that is in multiple sets of inputs like  join , I still have problems. I believe in That I can do something like this:  
  join (cut -f1 file1) (cut -f1 file2)   
 Is there any way to do this well? The way is without making unnecessary files?   
 
 
 Maybe it:  
  join   
 Believes that you are using  bash  as a code, though ...  < / Div>