Download and install the appropriate Redis distribution for your operating system from the official releases page. Once installed, launch the Redis CLI to verify the connection:

redis-cli

Validate the server responsiveness:

127.0.0.1:6379> PING
PONG

The PONG response confirms successful connectivity.

String Data Type Operations

Store a descriptive sttring value:

SET task_desc "Redis homework assignment"

Retrieve the stored value:

GET task_desc

Initialize and increment a numeric counter:

SET counter 100
INCR counter

Decrement the same counter:

DECR counter

Check the byte length of a string value:

STRLEN task_desc

List Data Type Operations

Append multiple elements to a list:

RPUSH locations Beijing Shenzhen Guangzhou

Remove and return the first element:

LPOP locations

Atomically move the last element of one list to another:

RPUSH users_list Alice Bob Charlie
RPOPLPUSH users_list recipients_list

Insert an element before a specific existing element:

LINSERT locations BEFORE Shenzhen Chengdu

Count the number of elements:

LLEN locations

Hash Data Type Operations

Create a hash with individual field assignments:

HSET purchase id 101
HSET purchase customer_name "John Doe"

Bulk insert multiple fields:

HSET profile user_id 3 username "alex_k" level 25

Retrieve all field names within a hash:

HKEYS purchase

Count fields in a hash:

HLEN purchase

Access a specific field value:

HGET purchase id

Key Management Commands

Check key existence:

EXISTS sample_key

Find keys matching a pattern:

KEYS *session*

Inspect remaining time-to-live:

TTL temp_key

Iterate through the keyspace efficiently:

SCAN 0

Alternative iteration methods include:

• KEYS * for all key (use cautiously in production)
• SSCAN set_key 0 for set members
• HSCAN hash_key 0 for hash fields
• ZSCAN zset_key 0 for sorted set members