Redis match keys that start with a digit [KEYS]

Question

Is it possible to get all the keys that start with a digit(e.g. 12.2323.MKSUID)? the KEYS command is supposed to support patterns but what kind of patterns/regex flavour ? I've tried KEYS \d with no result.

[The documentation](https://redis.io/commands/keys) explains it clearly. — ndnenkov, Feb 21 '17 at 16:08
Please read the documentation regarding `KEYS` carefully: > **Warning:** consider KEYS as a command that should only be used in production environments with extreme care. — Itamar Haber, Feb 21 '17 at 16:42

score 4 · Answer 1 · edited Apr 06 '17 at 11:43

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The KEYS command supports glob style patterns. To match keys that start with a digit, you can use the pattern:

KEYS [0-9]*

As Itamar notes, be careful using KEYS with a pattern match against a live system, it can severely impact performance.

More details and examples can be found in the description of KEYS on redis.io

edited Apr 06 '17 at 11:43

Itamar Haber

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answered Feb 21 '17 at 17:34

Tague Griffith

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score 4 · Answer 2 · edited May 23 '17 at 12:02

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This question has some good info. Like the comment suggested, better to use scan:

SCAN 0 MATCH "[0-9]*"

edited May 23 '17 at 12:02

Community

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answered Feb 21 '17 at 18:43

systemjack

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score 1 · Accepted Answer · answered Feb 21 '17 at 16:06

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For getting keys that starts with digit.

KEYS [0-9]*

answered Feb 21 '17 at 16:06

Sahil Gulati

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For the sake of future readers: while this answer is 100% correct - KEYS should be avoided in real world situations, and you should use SCAN instead. – Not_a_Golfer Feb 21 '17 at 20:40

Redis match keys that start with a digit [KEYS]

3 Answers3