sqlite - 如何将从 Osquery 触发的 SQL 查询的输出保存到文件

Question

我已经在我的机器上安装了 Osquery 实用程序。当我启动 SQL 命令时，它会将输出提供给 STDOUT。有什么方法可以将该输出重定向到文件吗？

$ sudo osqueryi 
I0314 10:57:51.644351  3958 database.cpp:563] Checking database version for migration
I0314 10:57:51.644912  3958 database.cpp:587] Performing migration: 0 -> 1
I0314 10:57:51.645279  3958 database.cpp:619] Migration 0 -> 1 successfully completed!
I0314 10:57:51.645627  3958 database.cpp:587] Performing migration: 1 -> 2
I0314 10:57:51.646088  3958 database.cpp:619] Migration 1 -> 2 successfully completed!
Using a virtual database. Need help, type '.help'
osquery> 
osquery> 
osquery> SELECT * from memory_info;
+--------------+-------------+----------+----------+-------------+-----------+----------+------------+-----------+
| memory_total | memory_free | buffers  | cached   | swap_cached | active    | inactive | swap_total | swap_free |
+--------------+-------------+----------+----------+-------------+-----------+----------+------------+-----------+
| 513617920    | 270921728   | 15110144 | 99860480 | 0           | 145080320 | 59494400 | 0          | 0         |
+--------------+-------------+----------+----------+-------------+-----------+----------+------------+-----------+
osquery> 

我想把这个输出放在一个文件中。我检查了 Osquery 官方文档。但它对解决这个特定问题没有帮助。 https://osquery.readthedocs.io/en/stable/introduction/sql/#sql-as-understood-by-osquery

Answer 1

您可以使用 shell 的重定向功能:

$ osqueryi --json 'select * from osquery_info' > res.json
$ cat res.json
[
  {"build_distro":"10.12","build_platform":"darwin","config_hash":"e7c68185a7252c23585d53d04ecefb77b3ebf99c","config_valid":"1","extensions":"inactive","instance_id":"38201952-9a75-41dc-b2f8-188c2119cda1","pid":"26255","start_time":"1552676034","uuid":"4740D59F-699E-5B29-960B-979AAF9BBEEB","version":"3.3.0","watcher":"-1"}
]

请注意，在此示例中，我们使用 JSON 输出。还有其他可用选项:--csv、--line、--list。

正如 seph 在 https://stackoverflow.com/a/55164199/491710 中解释的那样，在 osqueryd 中安排查询并将结果推送到日志记录管道是一个常见的用例。