Attack Script

Hi I am making a zombie game. I have everything except the script for the zombie to just hit my character at close combat. They do not have any weapons. They have a capsule body,two arms, a sphere as a head and 2 spheres as eyes. So is there any script that can damage my character without my zombies have some sort of weapon?

just use the collision of the collider on the zombie and your character. When they collide, just subtract the proper amount of damage.