Decrement a numerical key’s value by the given number if the key/value pair exists.

syntax:

decr <key> <value> [noreply]

parameters:

• value - The data that needs to be stored.
• noreply - This optional parameter tells the server not to send any reply.

example:

decr mykey 3

2

output notes:

• 3 → Subtract 3 from the value of “mykey”
• In this example, if “mykey” had a value of “5”, after running decr, its value would be “2”.