Redis命令有两种类型：
1）键值相关命令
2）服务相关命令
一、键值相关命令
keys：返回满足给定pattern的所有key
计算
安全
数据库
网络和加速
企业服务
127.0.0.1:6379> keys *
1) "mail"
2) "key2"
3) "mylist"
4) "name"
5) "mylist02"
6) "user"
7) "age"
8) "key3"
9) "user:001"
10) "key4"
11) "user001"
12) "zeng"
13) "key5"
14) "key1"
15) "job"127.0.0.1:6379> keys my*
1) "mylist"
2) "mylist02"2、exists：确认一个key是否存在，存在返回1，否则返回0
127.0.0.1:6379> exists mylist
(integer) 1
127.0.0.1:6379> exists my
(integer) 03、del：删除一个key，删除成功返回1
127.0.0.1:6379> del name
(integer) 1'
127.0.0.1:6379> exists name
(integer) 04、expire：设置一个key的过期时间
127.0.0.1:6379> expire age 10
(integer) 1
127.0.0.1:6379> ttl age
(integer) 7
127.0.0.1:6379> ttl age
(integer) 5
127.0.0.1:6379> ttl age
(integer) 4
127.0.0.1:6379> ttl age
(integer) 3
127.0.0.1:6379> ttl age
(integer) 2
127.0.0.1:6379> ttl age
(integer) 1
127.0.0.1:6379> ttl age
(integer) 1
127.0.0.1:6379> ttl age
(integer) -2
127.0.0.1:6379> ttl age
(nil)5、move：将当前数据库中的key转移到其他数据库中
127.0.0.1:6379> select 0 //select 选择数据库
OK
127.0.0.1:6379> set age 10
OK
127.0.0.1:6379> get age
"10"
127.0.0.1:6379> move age 1
(integer) 1
127.0.0.1:6379> get age
(nil)
127.0.0.1:6379> select 1
OK
127.0.0.1:6379[1]> get age
"10"6、persist：移除给定key的过期时间，取消成功返回1
127.0.0.1:6379[1]> expire age 200
(integer) 1
127.0.0.1:6379[1]> ttl age
(integer) 196
127.0.0.1:6379[1]> persist age
(integer) 1
127.0.0.1:6379[1]> ttl age
(integer) -17、rename：重命名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) "user001"
10) "zeng"
11) "key5"
12) "key1"
13) "job"
127.0.0.1:6379> rename mail email
OK
127.0.0.1:6379> keys *
1) "key2"
2) "mylist"
3) "mylist02"
4) "user"
5) "key3"
6) "email"
7) "user:001"
8) "key4"
9) "user001"
10) "zeng"
11) "key5"
12) "key1"
13) "job"8、type：返回值的类型,如果key不存在则返回none
127.0.0.1:6379> type mylist
list
127.0.0.1:6379> type name
none
127.0.0.1:6379> type zeng
string
127.0.0.1:6379> type use
hash二、服务器相关命令
1、ping：检测连接是否存活
127.0.0.1:6379> ping
PONG
2、echo：在命令行输出指定信息
127.0.0.1:6379> echo "hello,world"
"hello,world"
3、select：选择数据库
4、quit、exit：退出命令行
5、dbsize：返回当前数据库中key的数目
127.0.0.1:6379> keys *
1) "name"
2) "age"
127.0.0.1:6379> dbsize
(integer) 26、info：获取服务器的信息和统计
127.0.0.1:6379> info
# Server
redis_version:3.2.1
redis_git_sha1:00000000
redis_git_dirty:0
redis_build_id:83009af8b7a28da3
redis_mode:standalone
os:Linux 2.6.32-573.el6.x86_64 x86_64
arch_bits:64
multiplexing_api:epoll
gcc_version:4.4.7
process_id:5032
run_id:cde348e6605d2f14df3ab48ae63280bcf637397e
tcp_port:6379
uptime_in_seconds:668
uptime_in_days:0
hz:10
lru_clock:14012658
executable:/usr/local/redis/bin/redis-server
config_file:/usr/local/redis/etc/redis.conf
# Clients
connected_clients:1
client_longest_output_list:0
client_biggest_input_buf:0
blocked_clients:0
# Memory
used_memory:822504
used_memory_human:803.23K
used_memory_rss:7794688
used_memory_rss_human:7.43M
used_memory_peak:822504
used_memory_peak_human:803.23K
total_system_memory:1028882432
total_system_memory_human:981.22M
used_memory_lua:37888
used_memory_lua_human:37.00K
maxmemory:0
maxmemory_human:0B
maxmemory_policy:noeviction
mem_fragmentation_ratio:9.48
mem_allocator:jemalloc-4.0.3
# Persistence
loading:0
rdb_changes_since_last_save:2
rdb_bgsave_in_progress:0
rdb_last_save_time:1473629782
rdb_last_bgsave_status:ok
rdb_last_bgsave_time_sec:-1
rdb_current_bgsave_time_sec:-1
aof_enabled:0
aof_rewrite_in_progress:0
aof_rewrite_scheduled:0
aof_last_rewrite_time_sec:-1
aof_current_rewrite_time_sec:-1
aof_last_bgrewrite_status:ok
aof_last_write_status:ok
# Stats
total_connections_received:2
total_commands_processed:11
instantaneous_ops_per_sec:0
total_net_input_bytes:251
total_net_output_bytes:11772155
instantaneous_input_kbps:0.00
instantaneous_output_kbps:0.00
rejected_connections:0
sync_full:0
sync_partial_ok:0
sync_partial_err:0
expired_keys:0
evicted_keys:0
keyspace_hits:0
keyspace_misses:0
pubsub_channels:0
pubsub_patterns:0
latest_fork_usec:0
migrate_cached_sockets:0
# Replication
role:master
connected_slaves:0
master_repl_offset:0
repl_backlog_active:0
repl_backlog_size:1048576
repl_backlog_first_byte_offset:0
repl_backlog_histlen:0
# CPU
used_cpu_sys:0.66
used_cpu_user:0.27
used_cpu_sys_children:0.00
used_cpu_user_children:0.00
# Cluster
cluster_enabled:0
# Keyspace
db0:keys=2,expires=0,avg_ttl=07、config get：实时转储收到的请求
8、flushdb：删除当前选择数据库中的所有key
127.0.0.1:6379> dbsize
(integer) 2
127.0.0.1:6379> flushdb
OK
127.0.0.1:6379> dbsize
(integer) 0
127.0.0.1:6379> keys *
(empty list or set)9、flushall：删除所有数据库中的所有key
127.0.0.1:6379> select 0
OK
127.0.0.1:6379> keys *
(empty list or set)
127.0.0.1:6379> set name zeng
OK
127.0.0.1:6379> dbsize
(integer) 1
127.0.0.1:6379> select 1
OK
127.0.0.1:6379[1]> flushall
OK
127.0.0.1:6379[1]> select 0
OK
127.0.0.1:6379> keys *
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