Home Database Redis How to use the redis command

How to use the redis command

Apr 10, 2025 pm 08:45 PM
redis key value pair

Using the Redis directive requires the following steps: Open the Redis client. Enter the command (verb key value). Provides the required parameters (varies from instruction to instruction). Press Enter to execute the command. Redis returns a response indicating the result of the operation (usually OK or -ERR).

How to use the redis command

How to use Redis directive

Redis is a popular in-memory database that provides a range of instructions to manage and manipulate data. Each instruction has a specific syntax and specified parameters, which need to be entered in a certain format.

How to use Redis directive

  • Open the Redis client: First, open the Redis client using the terminal or command prompt.
  • Enter the instruction: In the Redis client, enter the instruction to be executed. Directives are usually in the form of verbs followed by keys and values.
  • Provide parameters: Some instructions require parameters. The required parameters depend on the instruction. For example, SET instruction requires a key and a value.
  • Execute command: Press Enter to execute command. Redis will return a response indicating whether the operation is successful.

Sample instructions

Here are some common Redis directive examples:

  • SET key value : Sets or updates the key and its associated value.
  • GET key : Gets the value with the specified key.
  • DEL key : Deletes key-value pairs with the specified key.
  • LPUSH list element : Press the element into the left side of the list.
  • RPOP list : Pop up elements from the right side of the list.
  • ZADD set score member : Add a member to the weighted ordered set.
  • HMSET hash field1 value1 field2 value2 : Set multiple fields and values ​​in the hash.

hint

  • Directive names are case-insensitive.
  • Keys and values ​​can be strings, lists, hashes, or collections.
  • Redis uses spaces to separate instructions and parameters.
  • The Redis response is returned in Simple Protocol format, usually in OK to indicate success or -ERR to indicate error.

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