To end the command chain, use the .end() command.
// cy.end is useful when you want to end a chain of commands
// and force Cypress to re-query from the root element
cy.get('.misc-table').within(() => {
  // ends the current chain and yields null
  cy.contains('Cheryl').click().end()
  // queries the entire table again
  cy.contains('Charles').click()
})
        | Table | 
|---|
| User: Cheryl | 
| User: Charles | 
| User: Darryl | 
To execute a system command, use the cy.exec() command.
// execute a system command.
// so you can take actions necessary for
// your test outside the scope of Cypress.
cy.exec('echo Jane Lane')
  .its('stdout').should('contain', 'Jane Lane')
// we can use Cypress.platform string to
// select appropriate command
cy.log(`Platform ${Cypress.platform} architecture ${Cypress.arch}`)
if (Cypress.platform === 'win32') {
  cy.exec('print cypress.json')
    .its('stderr').should('be.empty')
} else {
  cy.exec('cat cypress.json')
    .its('stderr').should('be.empty')
  cy.exec('pwd')
    .its('code').should('eq', 0)
}
        To get the DOM element that has focus, use the cy.focused() command.
cy.get('.misc-form').find('#name').click()
cy.focused().should('have.id', 'name')
cy.get('.misc-form').find('#description').click()
cy.focused().should('have.id', 'description')
        cypress/screenshots/my-image.png
                To wrap an object, use the cy.wrap() command.
cy.wrap({foo: 'bar'})
  .should('have.property', 'foo')
  .and('include', 'bar')
      {foo: bar}