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连接到 Redis 服务器#xff1a; 使用 redis-cli 命令即可连接到本地运行的 Redis 服务器#xff0c;默认连接到本地的 6379 端口。
redis-cli如果 Redis 服务器不在本地或者端口不同#xff0c;可以使用 -h 和 -p 参数指定主机和端…1. redis-cli命令使用—先连接上服务器
连接到 Redis 服务器 使用 redis-cli 命令即可连接到本地运行的 Redis 服务器默认连接到本地的 6379 端口。
redis-cli如果 Redis 服务器不在本地或者端口不同可以使用 -h 和 -p 参数指定主机和端口
redis-cli -h hostname -p port执行 Redis 命令 连接成功后可以直接在命令行中输入各种 Redis 命令来执行对应的操作比如设置键值对、获取值、操作列表、集合等等。交互式模式 在命令行中输入 redis-cli 后进入交互式模式可以一次次地输入命令并查看结果非常方便进行实时的交互操作。执行脚本文件 可以通过 --eval 参数执行 Lua 脚本文件例如
redis-cli --eval script.lua其他参数 redis-cli 支持许多其他参数可以使用 redis-cli --help 查看帮助文档了解更多用法和选项
2. redis-cli连接到服务器后可以使用help查看命令 根据输出可以看到
help 命令有三种用法
“help ” to get a list of commands in ,”help ” for help on ,”help ” to get a list of possible help topics
2.1. help
help 之后按 tab 按键可提示参数。在命令行下 tab 按键相信是用的最多的一个按键。
help 空格之后一直按 tab, 可按顺序查看到所有可能的组和命令。也可输入需要查询的 组或命令的前缀再按 tab 补全。
如
help generic 查看通用组的命令包括 deldump… 等等通用命令。 help string 查看字符串组命令。还可以查看其他组的命令如
help list help set, help sorted_set,help hash 等等查看所有的分组可以通过 help 提示(即help空格后按tab键)
2.2. help 查看具体命令组的帮助 APPEND key value
summary: Appends a string to the value of a key. Creates the key if it doesnt exist.
since: 2.0.0DECR key
summary: Decrements the integer value of a key by one. Uses 0 as initial value if the key doesnt exist.
since: 1.0.0DECRBY key decrement
summary: Decrements a number from the integer value of a key. Uses 0 as initial value if the key doesnt exist.
since: 1.0.0GET key
summary: Returns the string value of a key.
since: 1.0.0GETDEL key
summary: Returns the string value of a key after deleting the key.
since: 6.2.0GETEX key [EX seconds|PX milliseconds|EXAT unix-time-seconds|PXAT unix-time-milliseconds|PERSIST]
summary: Returns the string value of a key after setting its expiration time.
since: 6.2.0GETRANGE key start end
summary: Returns a substring of the string stored at a key.
since: 2.4.0GETSET key value
summary: Returns the previous string value of a key after setting it to a new value.
since: 1.0.0INCR key
summary: Increments the integer value of a key by one. Uses 0 as initial value if the key doesnt exist.
since: 1.0.0INCRBY key increment
summary: Increments the integer value of a key by a number. Uses 0 as initial value if the key doesnt exist.
since: 1.0.0INCRBYFLOAT key increment
summary: Increment the floating point value of a key by a number. Uses 0 as initial value if the key doesnt exist.
since: 2.6.0LCS key1 key2 [LEN] [IDX] [MINMATCHLEN min-match-len] [WITHMATCHLEN]
summary: Finds the longest common substring.
since: 7.0.0MGET key [key ...]
summary: Atomically returns the string values of one or more keys.
since: 1.0.0MSET key value [key value ...]
summary: Atomically creates or modifies the string values of one or more keys.
since: 1.0.1MSETNX key value [key value ...]
summary: Atomically modifies the string values of one or more keys only when all keys dont exist.
since: 1.0.1PSETEX key milliseconds value
summary: Sets both string value and expiration time in milliseconds of a key. The key is created if it doesnt exist.
since: 2.6.0SET key value [NX|XX] [GET] [EX seconds|PX milliseconds|EXAT unix-time-seconds|PXAT unix-time-milliseconds|KEEPTTL]
summary: Sets the string value of a key, ignoring its type. The key is created if it doesnt exist.
since: 1.0.0SETEX key seconds value
summary: Sets the string value and expiration time of a key. Creates the key if it doesnt exist.
since: 2.0.0SETNX key value
summary: Set the string value of a key only when the key doesnt exist.
since: 1.0.0SETRANGE key offset value
summary: Overwrites a part of a string value with another by an offset. Creates the key if it doesnt exist.
since: 2.2.0STRLEN key
summary: Returns the length of a string value.
since: 2.2.0SUBSTR key start end
summary: Returns a substring from a string value.
since: 1.0.02.3. help 查看具体命令的用法
help 具体命令可以查看命令的用法描述命令从那个版本开始命令属于哪个组等信息。如 help APPEND
