Returns the remaining time-to-live of a key in milliseconds.
PTTL key
| Value | Meaning |
|---|---|
N |
Remaining TTL in milliseconds (N ≥ 1) |
-1 |
Key exists but has no TTL |
-2 |
Key does not exist or has expired |
wrong number of arguments for 'pttl' command— incorrect number of arguments.
> SET counter 42 EX 100
OK
> PTTL counter
99743
> SET greeting hello
OK
> PTTL greeting
-1
> PTTL missing
-2