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Connect to Redis over a Unix socket

harmlessRedis and Memcacheddebian, ubuntu
Adjust the values, the command updates live
user@server
redis-cli -s /run/redis/redis-server.sock ping

With -s, redis-cli uses the given socket instead of opening a TCP connection to 127.0.0.1:6379. Any other Redis command works in place of ping. The socket is faster than TCP and not reachable from outside, and in the Debian configuration it has to be enabled via unixsocket in /etc/redis/redis.conf.

Note: Permission denied means the user is not in the redis group or unixsocketperm is too restrictive. redis-cli CONFIG GET unixsocket shows the actual path.

Also searched as

  • test redis socket
  • redis without tcp port
  • redis-cli unixsocket

Related one-liners

All in Redis and Memcached

Check whether Redis is reachable

$redis-cli -h 127.0.0.1 -p 6379 ping
harmlessRedis and Memcached

Count Redis keys by pattern without blocking the server

$redis-cli -n 0 --scan --pattern '*transient*' | wc -l
harmlessRedis and Memcached

Count the keys in a Redis database

$redis-cli -n 0 DBSIZE
harmlessRedis and Memcached

Find the biggest keys in Redis

$redis-cli -n 0 --bigkeys
harmlessRedis and Memcached

Flush a single Redis database (FLUSHDB)

$redis-cli -n 0 FLUSHDB
destructiveRedis and Memcached

Flush all Redis databases (FLUSHALL)

$redis-cli FLUSHALL
destructiveRedis and Memcached

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