What measures did Qin Shihuang take to Confucianism and what was its purpose?

The Qin Dynasty established the country and made the country rich by legalism, and implemented strict politics and laws. In order to consolidate the need of establishing an autocratic political system in the Qin Dynasty, and to prevent some Confucian scholars and vagrants from quoting Confucian classics and criticizing current affairs with the words of ancient sages and sages, the Qin Dynasty dealt a devastating blow to a hundred schools of thought in the Spring and Autumn Period, including Confucianism, and only books and personnel related to medical skills and divination were spared.

Now it seems that it should be true to burn books to bury Confucianism, but perhaps only some alchemists are cursing Qin Huang, not real Confucian scholars.