To clear the Redis cache from the command line, you can use the `FLUSHALL` command. Here's how:
1. Open a terminal or command prompt.
2. Connect to your Redis server using the `redis-cli` command. If Redis is running on the default port (6379) on localhost, you can simply type:
```
redis-cli
```
If your Redis server is running on a different host or port, you can specify the host and port like this:
```
redis-cli -h your_redis_host -p your_redis_port
```
3. Once you're connected to the Redis server, simply type the following command to clear the entire cache:
```
FLUSHALL
```
4. After executing this command, Redis will remove all the keys from the currently selected database.
Please be cautious while using the `FLUSHALL` command because it will remove all keys from all databases in the Redis instance. If you want to clear only the keys in a specific database, you can use the `FLUSHDB` command followed by the database number:
```
FLUSHDB [database number]
```
Replace `[database number]` with the number of the database you want to clear. The default database number is 0.
