This assumes you have already configured the aws command line tool. If not, check out my article on Getting Started with the AWS CLI.

The aws elasticache describe-cache-clusters command can be used to list the ElastiCache Clusters you have created.

aws elasticache describe-cache-clusters

And here is an example of how to limit the output using the --query option.

aws elasticache describe-cache-clusters --query 'CacheClusters[?CacheClusterId==`my-redis-cluster-0001-001`]'

Something like this should be returned.

{
    "CacheClusters": [
        {
            "CacheClusterId": "my-redis-cluster-0001-001",
            "ClientDownloadLandingPage": "https://console.aws.amazon.com/elasticache/home#client-download:",
            "CacheNodeType": "cache.t4g.micro",
            "Engine": "redis",
            "EngineVersion": "7.1.0",
            "CacheClusterStatus": "creating",
            "NumCacheNodes": 1,
            "PreferredAvailabilityZone": "us-east-1a",
            "PreferredMaintenanceWindow": "thu:08:00-thu:09:00",
            "PendingModifiedValues": {},
            "CacheSecurityGroups": [],
            "CacheParameterGroup": {
                "CacheParameterGroupName": "default.redis7.cluster.on",
                "ParameterApplyStatus": "in-sync",
                "CacheNodeIdsToReboot": []
            },
            "CacheSubnetGroupName": "redis-subnet",
            "AutoMinorVersionUpgrade": true,
            "SecurityGroups": [
                {
                    "SecurityGroupId": "sg-0c3296b3cd153fdc1",
                    "Status": "active"
                }
            ],
            "ReplicationGroupId": "my-redis-cluster",
            "SnapshotRetentionLimit": 0,
            "SnapshotWindow": "09:30-10:30",
            "AuthTokenEnabled": false,
            "TransitEncryptionEnabled": false,
            "AtRestEncryptionEnabled": true,
            "ARN": "arn:aws:elasticache:us-east-1:123456789012:cluster:my-redis-cluster-0001-001",
            "ReplicationGroupLogDeliveryEnabled": false,
            "LogDeliveryConfigurations": [],
            "NetworkType": "ipv4",
            "IpDiscovery": "ipv4"
        }
    ]
}