how to load lua script from file for redis,i use linux

[min Zhou]

how to load lua script from file for redis,i use linux

[Dvir Volk]

short answer - you can't. redis accepts lua scripts as strings. if you want to load lua files, you'll need to create a convenience wrapper yourself using your favorite programming language.

On Sat, Jun 16, 2012 at 8:40 PM, min Zhou <zm42...@gmail.com> wrote:

how to load lua script from file for redis,i use linux

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[Chris Love]

min

What programming language do you use? It is recommended to embed the script into the client language you are using and then execute an eval.

Chris

[min Zhou]

nodejs ,javascript .

i don't konw how to load a long script to redis,i want write lua script file,and then use "script load" command load this file ,but it doesn't work


在 2012年6月17日星期日UTC+8上午1时40分18秒，min Zhou写道：

[Chris Love]

You have said that you are using javascript & node.js.

Take a look at this example:

https://github.com/mranney/node_redis/blob/master/examples/eval.js

You need to use the node_redis client and run an eval with-in javascript.

Chris

[Chris Love]

It is usually not recommend to run the load script command and then run the script.

The recommended pattern is to run the evalsha, and if that fails, run the eval.  In that manner your script will be loaded and you can reuse it.

Otherwise you have to find a client application that will allow you to run a script load command. You may be able to use the script load redis-cli command, not in the shell but one the command line.  Never done it.

Chris

[min Zhou]

T_T  e文差好痛苦

i can run eval in the node_redis client;

i just didn't konw how to load a long script use "script load" command,


a.lua is lua script
>dd=`cat a.lua`
>./redis-cli
redis 127.0.0.1:6379>script load $dd

it doesn't work

在 2012年6月17日星期日UTC+8上午1时40分18秒，min Zhou写道：

how to load lua script from file for redis,i use linux

[Alex Barker]

Here is a cute little 1 liner i found at https://www.redisgreen.net/blog/intro-to-lua-for-redis-programmers/
redis-cli EVAL "$(cat hello.lua)" 0

[Itamar Haber]

Sure, that works, but true Redis Masters use `redis-cli --eval file.lua k1 k2 , arg1 arg2` ;)

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