如何忽略 jq 中损坏的 JSON 行？

使用时jq为了处理日志文件，某些行可能会被破坏，因此jq抛出错误并停止处理。

例如完整日志：

{"level":"debug","time":"2021-09-24T19:42:47.140+0800","message":"sent send binary to ws server1","pid":41491,"cid":"32likw","num":1,"count":5120}
{"level":"debug","time":"2021-09-24T19:42:47.305+0800","message":"sent send binary to ws server2","pid":41491,"cid":"32likw","num":1,"count":5120}
{"level":"debug","time":"2021-09-24T19:42:47.469+0800","message":"sent send binary to ws server3","pid":41491,"cid":"32likw","num":1,"count":5120}
{"level":"debug","time":"2021-09-24T19:42:47.499+0800","message":"sent send binary to ws server4","pid":41491,"cid":"32likw","num":1,"count":5120}
{"level":"debug","time":"2021-09-24T19:42:47.581+0800","message":"sent send binary to ws server5","pid":41491,"cid":"32likw","num":1,"count":5120}

jq 处理得很好：

< snippet1.json jq -C -r '.message'
sent send binary to ws server1
sent send binary to ws server2
sent send binary to ws server3
sent send binary to ws server4
sent send binary to ws server5

损坏的（第 3 行的最后一部分丢失）：

{"level":"debug","time":"2021-09-24T19:42:47.140+0800","message":"sent send binary to ws server1","pid":41491,"cid":"32likw","num":1,"count":5120}
{"level":"debug","time":"2021-09-24T19:42:47.305+0800","message":"sent send binary to ws server2","pid":41491,"cid":"32likw","num":1,"count":5120}
{"level":"debug","time":"2021-09-24T19:42:47.469+0800","message":"sent send binary to ws server3","pi
{"level":"debug","time":"2021-09-24T19:42:47.499+0800","message":"sent send binary to ws server4","pid":41491,"cid":"32likw","num":1,"count":5120}
{"level":"debug","time":"2021-09-24T19:42:47.581+0800","message":"sent send binary to ws server5","pid":41491,"cid":"32likw","num":1,"count":5120}

jq停在虚线处：

< snippet2.json jq -C -r '.message'
sent send binary to ws server1
sent send binary to ws server2
parse error: Invalid string: control characters from U+0000 through U+001F must be escaped at line 4, column 2

而且我希望jq可以忽略第三行并继续，就像这样：

< snippet2.json jq -C -r '.message'
sent send binary to ws server1
sent send binary to ws server2
sent send binary to ws server4
sent send binary to ws server5

我尝试使用-R中提到的另一个帖子 https://stackoverflow.com/questions/41599314/ignore-unparseable-json-with-jq，这对这个案子没有帮助。

< snippet2.json jq -C -R -r '.message'
jq: error (at <stdin>:1): Cannot index string with string "message"
jq: error (at <stdin>:2): Cannot index string with string "message"
jq: error (at <stdin>:3): Cannot index string with string "message"
jq: error (at <stdin>:4): Cannot index string with string "message"
jq: error (at <stdin>:5): Cannot index string with string "message"

您能否告诉我是否有任何解决方案/技能可以忽略/跳过/抑制此类错误并获得其余结果？

要跳过断线，您可以使用：

jq -Rr 'fromjson? | .message'

如果您想对它们做其他事情，您可以从以下内容开始：

jq -R '. as $line | try fromjson catch $line'

对于其他选项，请参阅：

????：有没有办法让 jq 在输入文件中遇到错误后继续运行？ jq 可以处理损坏的 JSON 吗？

in the jq FAQ https://github.com/stedolan/jq/wiki/FAQ.