如何通过正则表达式从日志(splunk)中获取端口号?

时间:2019-10-28 13:53:48

标签: regex splunk

如何通过正则表达式从日志(Splunk)获取端口号:

{"info":{"seqno":0,"evtType":1,"oTime":null,"links":null,"id":"9b0ae9a9-e424-11e9-a309-fd988b74a8c5","origin":null,"relations":[],"details":"","severity":5,"time":1569918148265,"headId":"9b0ae9a9-e424-11e9-a309-fd988b74a8c5","sa":2},"desc":{"alertId":{"desc":"The network port is down","label":"Link down"},"pointId":[{"desc":"Type: openflow\nIP: a.b.c.d","label":"device_name [a.b.c.d]"},{"desc":"","label":""},{"desc":"Network Interfaces","label":""},{"desc":"","label":"**eth-0-36**"}]},"id":{"alertId":"16","component":1,"pointId":["a-b-c-d","dev","1","36"]}}

端口表示法可能因设备而异:

Eth1 / 1.2; Eth1 / 2.500; eth-0-19 / 4; eth-0-4; Eth1 / 4

我尝试过\W+((?i)Eth....(?-i))\W+,但在Splunk中不起作用。

2 个答案:

答案 0 :(得分:0)

要匹配不同的格式,可以使用:

\beth\d*(?:-\d+)*(?:/\d+(?:\.\d+)?)?\b

部分

  • \b字边界
  • eth\d*将eth匹配0+个数字
  • (?:-\d+)*重复0次以上-和1个以上数字
  • (?:非捕获组
    • /\d+(?:\.\d+)?匹配/,1个以上的数字,以及.和1+个以上的数字
  • )?关闭非捕获组并将其设置为可选
  • \b字边界

Regex demo

使用不区分大小写的匹配项或使用[Ee]th

答案 1 :(得分:0)

这应该有效:

//Create a new PDF document.
PdfDocument document = new PdfDocument();
//Add a page.
PdfPage page = document.Pages.Add();

它只是寻找2个引号之间的eth字符串。但是,如果您希望它对您提供的测试用例更加严格,则@TheFourthBird的答案可能会更好