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[Redis] redis wildcards to delete keys in bulk

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Posted on 8/12/2019 5:12:14 PM | | |
In Redis, the DEL command supports multiple keys as parameters to delete, but it does not support wildcards, and keys cannot be deleted in batches through wildcards.However, we can do this with the help of Linux pipelines and xargs directives。

For example, to remove all keys that start with user, you can do this way:

[root@dev_opayredis src]# redis-cli keys "user*"
1) "user1"
2) "user2"
[root@dev_opayredis src]# redis-cli keys "user*" | xargs redis-cli del
(integer) 2

Delete successful
Note: The command is only available for Linux servers, not Windows servers.

There is a bug in the redis cache, which causes too much dirty data to need to be cleaned. However, the del of redis does not support batch deletion of wildcards by default, and we use linux commands to implement batch deletion

  • -h redis host address
  • -a password
  • -n Specify the database number
  • keys wildcard key



Delete the specified line data for the specified wildcard key







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