GNU Core Utilities - Wikipedia, the free encyclopedia

GNU Core Utilities - Wikipedia, the free encyclopedia
yes (Unix) - Wikipedia, the free encyclopedia

yes can be used to send an affirmative (or negative; e.g. yes n) response to any command that would otherwise request one, and thereby causing the command to run non-interactively.

This usage may be obsolete today, as most commands that would request response from the user have either a 'force' option (e.g., rm -f) or an 'assume-yes' option (e.g., apt-get -y in Debian).

As an example, the following:
rm -f *.txt
is equivalent to
yes | rm *.txt