How to delete a key if it exists in Redis?

To delete a key if it exists in Redis, you can use the DEL command.

The DEL command is used to delete a key or a list of keys. If the key exists, it is deleted and the command returns the number of keys deleted. If the key does not exist, the command returns 0.

To delete a single key, use the following command:


DEL key_name

Where key_name is the name of the key you want to delete. If the key exists, it will be deleted and the command will return 1. If the key does not exist, the command will return 0.

If you want to delete multiple keys, you can pass them as arguments to the DEL command:


DEL key1 key2 key3 ...

In this case, all the keys that exist will be deleted, and the command will return the total number of keys deleted.

It's important to note that deleting a key is irreversible, so make sure you want to delete it before executing the DEL command.

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