Function addReplySubcommandSyntaxError

app/redis-6.2.6/src/networking.c:924–931

Add a suggestive error reply. * This function is typically invoked by from commands that support * subcommands in response to an unknown subcommand or argument error. */

 * This function is typically invoked by from commands that support
 * subcommands in response to an unknown subcommand or argument error. */
void addReplySubcommandSyntaxError(client *c) {
    sds cmd = sdsnew((char*) c->argv[0]->ptr);
    sdstoupper(cmd);
    addReplyErrorFormat(c,
        "Unknown subcommand or wrong number of arguments for '%s'. Try %s HELP.",
        (char*)c->argv[1]->ptr,cmd);
    sdsfree(cmd);
}

/* Append 'src' client output buffers into 'dst' client output buffers.
 * This function clears the output buffers of 'src' */