How do you install
mysql on tiny core? Also how do you install
clamav? Can you install
yum on tiny core?
All should be done in command line / terminal
I know the broad answer is to use the app browser: http://distro.ibiblio.org/tinycorelinux/download_howto.html That is to say that is how you install applications from a broad perspective. Having said that, I am not sure it addresses your specific question.
MySQL isnt avaialble for Tiny Core, but mariadb v10.0.19 is. Mariadb is a drop-in replacement for MySQL.
ClamAV isn't in the TC repository, so isn't currently available.
The Apt-get and YUM package managers are for entirely different distributions and therefore not usable with TC.
The TC command line app browser (tce-ab) can install mariadb in on-demand mode, or mount mode.