我想使用「grep/awk」或其他類似工具(例如「grep Proxy data.txt」)剪切文本文件,然後獲得「15988 「,從段落中獲得的與我想要查找的模式相關的數字(實際上是端口號)。任何一個端口擴展,通過使用 「============」 字如何從基於模式的上一行grep數據(不在行數之前)
有點類似與別人區分開來,但我變得頭暈 How can I make 'grep' show a single line five lines above the grepped line?
==============NEXT SERVICE FINGERPRINT (SUBMIT INDIVIDUALLY)==============
SF-Port15988-TCP:V=7.01%I=7%D=8/3%Time=57A107C3%P=i586-pc-linux-gnu%r(GetR
SF:equest,24E,"HTTP/1\.1\x20404\x20Not\x20found\r\nConnection:\x20close\r\
SF:nDate:\x20Tue,\x2002\x20Aug\x202016\x2020:44:05\x20GMT\r\nContent-Type:
SF:\x20text/html\r\nContent-Length:\x20407\r\nExpires:\x200\r\nCache-Contr
SF:ol:\x20no-cache\r\nPragma:\x20no-cache\r\n\r\n<!DOCTYPE\x20HTML\x20PUBL
SF:IC\x20\"-//W3C//DTD\x20HTML\x204\.01\x20Transitional//EN\"\x20\"http://
SF:www\.w3\.org/TR/html4/loose\.dtd\">\n<html><head>\n<title>Proxy\x20erro
SF:r:\x20404\x20Not\x20found\.</title>\n</head><body>\n<h1>404\x20Not\x20f
SF:ound</h1>\n<p>The\x20following\x20error\x20occurred\x20while\x20trying\
SF:x20to\x20access\x20<strong>/</strong>:<br><br>\n<strong>404\x20Not\x20f
SF:ound</strong></p>\n<hr>Generated\x20Wed,\x2003\x20Aug\x202016\x2003:44:
SF:05\x20WIT\x20by\x20rpc\x20on\x20<em>sevdev:15988</em>\.\n</body></html>
SF:\r\n")%r(HTTPOptions,258,"HTTP/1\.1\x20501\x20Method\x20not\x20implemen
SF:ted\r\nConnection:\x20close\r\nDate:\x20Tue,\x2002\x20Aug\x202016\x2020
SF::44:05\x20GMT\r\nContent-Type:\x20text/html\r\nContent-Length:\x20404\r
SF:\nExpires:\x200\r\nCache-Control:\x20no-cache\r\nPragma:\x20no-cache\r\
SF:n\r\n<!DOCTYPE\x20HTML\x20PUBLIC\x20\"-//W3C//DTD\x20HTML\x204\.01\x20T
SF:ransitional//EN\"\x20\"http://www\.w3\.org/TR/html4/loose\.dtd\">\n<htm
SF:l><head>\n<title>Proxy\x20error:\x20501\x20Method\x20not\x20implemented
SF:\.</title>\n</head><body>\n<h1>501\x20Method\x20not\x20implemented</h1>
SF:\n<p>The\x20following\x20error\x20occurred:<br><br>\n<strong>501\x20Met
SF:hod\x20not\x20implemented</strong></p>\n<hr>Generated\x20Wed,\x2003\x20
SF:Aug\x202016\x2003:44:05\x20WIT\x20by\x20rpc\x20on\x20<em>sevdev:15988</
SF:em>\.\n</body></html>\r\n")%r(RTSPRequest,26C,"HTTP/1\.1\x20400\x20Erro
SF:r\x20in\x20first\x20request\x20line\r\nConnection:\x20close\r\nDate:\x2
SF:0Tue,\x2002\x20Aug\x202016\x2020:44:05\x20GMT\r\nContent-Type:\x20text/
SF:html\r\nContent-Length:\x20419\r\nExpires:\x200\r\nCache-Control:\x20no
SF:-cache\r\nPragma:\x20no-cache\r\n\r\n<!DOCTYPE\x20HTML\x20PUBLIC\x20\"-
SF://W3C//DTD\x20HTML\x204\.01\x20Transitional//EN\"\x20\"http://www\.w3\.
SF:org/TR/html4/loose\.dtd\">\n<html><head>\n<title>Proxy\x20error:\x20400
SF:\x20Error\x20in\x20first\x20request\x20line\.</title>\n</head><body>\n<
SF:h1>400\x20Error\x20in\x20first\x20request\x20line</h1>\n<p>The\x20follo
SF:wing\x20error\x20occurred:<br><br>\n<strong>400\x20Error\x20in\x20first
SF:\x20request\x20line</strong></p>\n<hr>Generated\x20Wed,\x2003\x20Aug\x2
SF:02016\x2003:44:05\x20WIT\x20by\x20rpc\x20on\x20<em>sevdev:15988</em>\.\
SF:n</body></html>\r\n");
我有做
grep "Proxy" aaa.txt
結果(我知道我這樣做):
SF: www \ .w3 \ .org/TR/HTML4/loose \ .dtd \ "> \ n <html> <head> \ n <title> Proxy \ x20erro
SF: l> <head> \ n <title> Proxy \ x20error: \ x20501 \ x20Method \ x20not \ x20implemented
SF: org/TR/HTML4/loose \ .dtd \ "> \ n <html> <head> \ n <title> Proxy \ x20error: \ x20400
只是wordering如何削減/ grep的所以結果變成了這個樣子:
15988
15988
15988
感謝,
閱讀[問]→[編輯]你的問題提供[MCVE]包括簡潔的,可測試的樣本輸入和預期的輸出加上你至今嘗試什麼。重要的是 - 使用文本,而不是圖片,因爲我們有一些東西來測試一個潛在的解決方案。 –