how change terminal initially dispaly name in ubuntu?

[adasi]

My ubuntu terminal show as

mmh@mmh2-PC04:~$

i want to change it as

user@mmh2-PC04:~$

please help me?

[CaptainMark]

Do you mean the literal term user or do you mean your user name?

The way to do it is to open the file /home/[your user]/.bashrc and add the line:
export PS1="insert bash prompt here"

just make up your bash prompt for your user, there are certain keywords you can use, this site will generate bash prompt lines for you

or you can add the line to the file /etc/bash.bashrc to make the prompt system wide for all users

[vamp774]

I think the first portion is the user @ <machine_name> . If you create a different user account you'll see that user @mmh2-PC04