Redis is an open-source, BSD-licensed advanced key-value store. It is often referred to as a data structure server since the keys can contain strings, hashes, lists, sets, and sorted sets. Redis is written in C.
Redis is a NoSQL database that follows the principle of a key-value store.
Some commands of Redis.
KEYS: Returns all the keys matching the glob-style pattern as space-separated strings.
LINDEX: This command returns the specified element of the list being stored at the specified key.
LLEN: This command returns the length of the list stored at the specified key.
LPOP: Atomically returns and removes the first (LPOP) or last (RPOP) element of the list.
LPUSH: Add the string value to the head (RPUSH) or tail (LPUSH) of the list stored at the key.
LRANGE: Return the specified elements of the list stored at the specified key.
LREM: Remove the first count occurrences of the value element from the list.
LSET: Set the list element at the index (see LINDEX for information about the index argument) with the new value. Out-of-range indexes will generate an error.
LTRIM: Trim an existing list so that it will contain only the specified range of elements specified.
MGET: Get the values of all the specified keys.
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