Linux terminal installation yes/no error

Question

I want to set up something, example: phpmyadmin;

Terminal CODE:

sudo  apt-get  install  phpmyadmin

When I enter this code a yes or no question is seen. I answer 'yes' 'y' but it is cancelled.

Answer 1

It asks you:

Do you want to continue? [Y/n]
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Note the capital "Y", which means it's selected by default, so pressing "enter" is enough, no need to enter "yes".