> Consider the paste command.
> paste requires input_file_name.
> Using the command line
> paste `tty`
> we can enter data from standard input.
> Is there any other way to do it? (I would like to use pipe with paste).
1. The way you have it written, you won't get standard input.
You will get one line which is the device name for your
terminal. You really ought to try your examples before writing
2. The man page for paste quite clearly tells you how to get
standard input. I leave it as an exercise for you to read
3. It occurs to me that this might be a homework question, in
which case  is even more relevant.
4. Always read the man page first. The man pages are your friend.