You can configure caching options of cli in angular.json file. One of options is cache which gives you the option of disabling it.

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  "cli": {
    "cache": {
      "enabled": false
    }
  },
  "projects": {}
}

You can disable it by running this command too:

ng config cli.cache.enabled false

• To clear the cache on Unix-based operating systems:

rm -rf .angular/cache

• To clear the cache on Windows:

rmdir /s /q .angular/cache

You can find out more about it in docs.