You can transfer money from RBC to CIBC using RBC Online Banking or RBC Mobile Banking. In Online Banking, go to the "Quick Payments & Transfers" section and select the account you want to send money from. You can then add an Interac e-Transfer recipient in the "To:" field, enter the amount you want to transfer and click "Submit."
In the app, tap "Move Money" and then "Send an Interac e-Transfer." You'll then be able to select the account you want to send from, enter your recipient's details and the amount you want to transfer.