SCRIPT EXISTS

Syntax text Syntax diagram API methods

SCRIPT EXISTS sha1 [sha1 ...]

Client:

script_exists(
    *args: str  // SHA1 digests to check
) → ResponseT  // List of boolean values indicating script existence

scriptExists(
    sha1: RedisVariadicArgument  // One or more SHA1 digests of scripts
) → Promise<ArrayReply<NumberReply>>  // Array of 1s and 0s indicating script existence

scriptExists(
    sha1: String  // SHA1 digest to check
) → Boolean  // True if script exists

scriptExists(
    sha1: String...  // SHA1 digests to check
) → List<Boolean>  // List of boolean values indicating script existence

scriptExists(
    digests: String...  // SHA1 digests
) → List<Boolean>  // List of boolean values indicating script existence

scriptExists(
    digests: String...  // SHA1 digests
) → RedisFuture<List<Boolean>>  // List of boolean values indicating script existence

scriptExists(
    digests: String...  // SHA1 digests
) → Flux<Boolean>  // Boolean values indicating script existence

ScriptExists(
    ctx: context.Context,  // Context for the operation
    hashes: ...string  // SHA1 digests to check
) → *BoolSliceCmd  // List of boolean values indicating script existence

script(
    $subcommand: string,  // SCRIPT subcommand (e.g., 'EXISTS')
    $argument: mixed  // Optional argument for the subcommand
) → mixed  // Command result

Available since:: Redis Open Source 2.6.0
Time complexity:: O(N) with N being the number of scripts to check (so checking a single script is an O(1) operation).
ACL categories:: @slow, @scripting,
Compatibility:: Redis Software and Redis Cloud compatibility

Returns information about the existence of the scripts in the script cache.

This command accepts one or more SHA1 digests and returns a list of 1 and 0 values to indicate whether each script exists in the script cache. Before you run a pipeline, use this command to check whether Redis has loaded the scripts you need. For missing scripts, use SCRIPT LOAD; then use EVALSHA instead of EVAL in the pipeline to save bandwidth.

For more information about EVAL scripts see Introduction to Eval Scripts.

Required arguments

sha1 [sha1 ...]

One or more SHA1 digests to look up in the script cache.

Redis Software and Redis Cloud compatibility

Redis Software	Redis Cloud	Notes
✅ Standard ✅ Active-Active	✅ Standard ✅ Active-Active

Return information

RESP2 RESP3

Array reply: an array of integers that correspond to the specified SHA1 digest arguments.