As you can see from the screenshot, my entire machine name (looks like a key) gets displayed whenever I invoke a terminal session.
Is there any way to avoid or hide it?
Yes. Open ~/.bashrc file from terminal with:
gedit ~/.bashrc
Find this line (in my case is somewhere at line 60):
PS1='${debian_chroot:+($debian_chroot)}[033[01;32m]u@h[033[00m]:[033[01;34m]w[033[00m]$ '
and replace it with:
PS1='${debian_chroot:+($debian_chroot)}[033[01;32m]u[033[00m]:[033[01;34m]w[033[00m]$ '
As you can see, the most important thing is to delete h (which stands for hostname) from PS1 if you want to hide machine name from displaying in terminal.
Save the file and close it. Restart the terminal, or just type:
. ~/.bashrc
