Redis Common Commands

There are two types of REDIS commands:

1) Key-value related commands

2) service-related commands

I. Key-Value RELATED commands

Keys: Returns all keys that satisfy the given pattern

127.0.0.1:6379> keys * 1) "Mail" 2) "Key2" 3) "MyList" 4) "name" 5) "mylist02" 6) "user" 7) "age" 8) "Key3" 9) "user:00 1 "Key4") "user001" "Zeng" "Key5") "Key1" "Job"

127.0.0.1:6379> keys my*1) "MyList" 2) "mylist02"

2, exists: Verify that a key exists, there is return 1, otherwise return 0

127.0.0.1:6379> exists mylist (integer) 1127.0.0.1:6379> exists my (integer) 0

3, Del: Delete a key, delete successfully returned 1

127.0.0.1:6379> del name (integer) 1 ' 127.0.0.1:6379> exists name (integer) 0

4, expire: Set the expiration time of a key

127.0.0.1:6379> expire Age (integer) 1127.0.0.1:6379> ttl age (Integer) 7127.0.0.1:6379> ttl age (integer) 5127.0.0.1:6379> ttl age (Integer) 4127.0.0.1:6379> ttl age (Integer) 3127.0.0.1:6379> ttl age (integer) 2127.0.0.1:6379> ttl age (Integer) 1127.0.0.1:6379> ttl age (Integer) 1127.0.0.1:6379> ttl age (integer)- 2127.0.0.1:6379> TTL age (Nil)

5. Move: Transfer the key from the current database to a different database

127.0.0.1:6379> Select 0//select Choose Database ok127.0.0.1:6379> set age 10ok127.0.0.1:6379> get Age "10" 127.0.0.1:6379 > Move Age 1 (integer) 1127.0.0.1:6379> get Age (Nil) 127.0.0.1:6379> select 1ok127.0.0.1:6379[1]> Get Age "10"

6, Persist: Remove the expiration time of the given key, cancel the successful return 1

127.0.0.1:6379[1]> expire Age (integer) 1127.0.0.1:6379[1]> ttl age (integer) 196127.0.0.1:6379[1]> persist Age (Integer) 1127.0.0.1:6379[1]> ttl age (integer)-1

7. Rename: Rename key

127.0.0.1:6379> keys * 1) "Mail" 2) "Key2" 3) "MyList" 4) "mylist02" 5) "user" 6) "Key3" 7) "user:001" 8) "Key4" 9) "US er001 "Zeng") "Key5" ("Key1") "Job" 127.0.0.1:6379> rename mail emailok127.0.0.1:6379> keys * 1) "Key2" 2) "MyList" 3) "mylist02" 4) "user" 5) "Key3" 6) "email" 7) "user:001" 8) "Key4" 9) "user001") "Zeng" "Key5" 13 ) "Job"

8. Type: Returns a value that is none if key does not exist

127.0.0.1:6379> type mylistlist127.0.0.1:6379> type name none127.0.0.1:6379> type zengstring127.0.0.1:6379 > Type Usehash

Second, server-related commands

1. Ping: Detects if the connection is alive

127.0.0.1:6379> Ping

PONG

2, Echo: Output The specified information at the command line

127.0.0.1:6379> echo "Hello,world"

"Hello,world"

3. Select: Choose Database

4, quit, exit: Exit command line

5. Dbsize: Returns the number of keys in the current database

127.0.0.1:6379> keys *) "name" 2) "Age" 127.0.0.1:6379> dbsize (integer) 2

6. Info: Get the information and statistics of the server

127.0.0.1:6379> info# serverredis_version:3.2.1redis_git_sha1:00000000redis_git_dirty:0redis_ Build_id:83009af8b7a28da3redis_mode:standaloneos:linux 2.6.32-573.el6.x86_64 x86_64arch_bits : 64multiplexing_api:epollgcc_version:4.4.7process_id:5032run_id:cde348e6605d2f14df3ab48ae63280bcf637397etcp_ port:6379uptime_in_seconds:668uptime_in_days:0hz:10lru_clock:14012658executable:/usr/local/redis/bin/ Redis-serverconfig_file:/usr/local/redis/etc/redis.conf# clientsconnected_clients:1client_longest_output_ List:0client_biggest_input_buf:0blocked_clients:0# memoryused_memory:822504used_memory_human:803.23kused_ Memory_rss:7794688used_memory_rss_human:7.43mused_memory_peak:822504used_memory_peak_human:803.23ktotal_system _memory:1028882432total_system_memory_human:981.22mused_memory_lua:37888used_memory_lua_human:37.00kmaxmemory :0maxmemory_human:0bmaxmemory_policy:noevictionmem_fragmentation_ratio:9.48mem_allocator:jemalloc-4.0.3#  Persistenceloading:0rdb_changes_siNce_last_save:2rdb_bgsave_in_progress:0rdb_last_save_time:1473629782rdb_last_bgsave_status:okrdb_last_bgsave_ Time_sec:-1rdb_current_bgsave_time_sec:-1aof_enabled:0aof_rewrite_in_progress:0aof_rewrite_scheduled:0aof_last _rewrite_time_sec:-1aof_current_rewrite_time_sec:-1aof_last_bgrewrite_status:okaof_last_write_status:ok#  Statstotal_connections_received:2total_commands_processed:11instantaneous_ops_per_sec:0total_net_input_bytes : 251total_net_output_bytes:11772155instantaneous_input_kbps:0.00instantaneous_output_kbps:0.00rejected_ Connections:0sync_full:0sync_partial_ok:0sync_partial_err:0expired_keys:0evicted_keys:0keyspace_hits:0keyspace _misses:0pubsub_channels:0pubsub_patterns:0latest_fork_usec:0migrate_cached_sockets:0# replicationrole: Masterconnected_slaves:0master_repl_offset:0repl_backlog_active:0repl_backlog_size:1048576repl_backlog_first_ Byte_offset:0repl_backlog_histlen:0# cpuused_cpu_sys:0.66used_cpu_user:0.27used_cpu_sys_children:0.00used _cpu_user_children:0.00# clustercluster_enabled:0# keyspacedb0:keys=2,expires=0,avg_ttl=0 

7. config get: real-time dump of received requests

8. FLUSHDB: Delete all keys in the currently selected database

127.0.0.1:6379> dbsize (integer) 2127.0.0.1:6379> flushdb ok127.0.0.1:6379> dbsize (integer) 0127.0.0.1:6379 > Keys * (empty list or set)

9. Flushall: Remove all keys from all databases

127.0.0.1:6379> Select 0ok127.0.0.1:6379> keys * (empty list or set) 127.0.0.1:6379> set name zengOK127.0.0.1 :6379> dbsize (integer) 1127.0.0.1:6379> select 1ok127.0.0.1:6379[1]> flushallok127.0.0.1:6379[1]> Select 0ok127.0.0.1:6379> keys * (empty list or set)

This article is from the "Zengestudy" blog, make sure to keep this source http://zengestudy.blog.51cto.com/1702365/1854097

Redis Common Commands