Once your contract is deployed you can interact with it using your favorite shell. For this, you can use the NEAR CLI. Please notice that in this page we will only touch on how to use NEAR CLI to call methods in a contract. For the full documentation please visit the NEAR CLI documentation page.
View methods are those that perform read-only operations. Calling these methods is free, and do not require to specify which account is being used to make the call:
near view <accountId> <methodName>
Change methods are those that perform both read and write operations. For these methods we do need to specify the account being used to make the call, since that account will expend GAS in the call.
near call <contractId> <methodName> <jsonArgs> --accountId <yourAccount> [--attachDeposit <amount>] [--gas <GAS>]