127.0.0.1:6379> help @hash
HDEL key field [field ...]
summary: Delete one or more hash fields
since: 2.0.0
HEXISTS key field
summary: Determine if a hash field exists
since: 2.0.0
HGET key field
summary: Get the value of a hash field
since: 2.0.0
HGETALL key
summary: Get all the fields and values in a hash
since: 2.0.0
HINCRBY key field increment
summary: Increment the integer value of a hash field by the given number
since: 2.0.0
HINCRBYFLOAT key field increment
summary: Increment the float value of a hash field by the given amount
since: 2.6.0
HKEYS key
summary: Get all the fields in a hash
since: 2.0.0
HLEN key
summary: Get the number of fields in a hash
since: 2.0.0
HMGET key field [field ...]
summary: Get the values of all the given hash fields
since: 2.0.0
HMSET key field value [field value ...]
summary: Set multiple hash fields to multiple values
since: 2.0.0
HSET key field value
summary: Set the string value of a hash field
since: 2.0.0
HSETNX key field value
summary: Set the value of a hash field, only if the field does not exist
since: 2.0.0
HVALS key
summary: Get all the values in a hash
since: 2.0.0