Redis String: DECRBY
DECRBY key decrement
Redis DECRBY command is used to decrement the number stored at key by specified value. If the key does not exist, it is set to 0 before performing the operation. If the key contains a value of the wrong type or contains a string that can not be represented as integer an error is returned.
Syntax:
DECRBY KEY_NAME DECREMENT_AMOUNT
Available since
1.0.0.
Return Value
Integer reply, the value of key after the increment
Return Value Type
Integer
Example: Redis DECRBY
redis 127.0.0.1:6379> SET visitors 1000 OK redis 127.0.0.1:6379> DECRBY visitors 5 (integer) 995
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