redisDelete keys by pattern in Redis

redis-cli KEYS "pattern" | xargs redis-cli DELctrl + cgithub

`redis-cli` executes Redis command in bash	`KEYS` find keys using specified pattern
`pattern` patter to search keys based on	`xargs` will use output of the left command and pass it to the right comman
`DEL` deletes specified keys (will be passed from output of first comman)

redis-cli KEYS "key*" | xargs redis-cli DEL

(integer) 3