Linux系統(tǒng)中字符串搜索命令ngrep的用法

這篇文章主要介紹“Linux系統(tǒng)中字符串搜索命令ngrep的用法”，在日常操作中，相信很多人在Linux系統(tǒng)中字符串搜索命令ngrep的用法問(wèn)題上存在疑惑，小編查閱了各式資料，整理出簡(jiǎn)單好用的操作方法，希望對(duì)大家解答”Linux系統(tǒng)中字符串搜索命令ngrep的用法”的疑惑有所幫助！接下來(lái)，請(qǐng)跟著小編一起來(lái)學(xué)習(xí)吧！

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安裝ngrep
下載地址

代碼如下:

git clone git://git.code.sf.net/p/ngrep/code ngrep-code

進(jìn)入目錄

代碼如下:

cd ngrep-code
./configure --with-pcap-includes=/usr/local/include/pcap
make
make install

選項(xiàng)

-h     is help/usage
-V    is version information
-q    is be quiet (don't print packet reception hash marks)靜默模式，如果沒(méi)有此開關(guān)，未匹配的數(shù)據(jù)包都以“#”顯示
-e    is show empty packets 顯示空數(shù)據(jù)包
-i     is ignore case 忽略大小寫
-v    is invert match 反轉(zhuǎn)匹配
-R   is don't do privilege revocation logic
-x    is print in alternate hexdump format 以16進(jìn)制格式顯示
-X   is interpret match expression as hexadecimal 以16進(jìn)制格式匹配
-w   is word-regex (expression must match as a word) 整字匹配
-p   is don't go into promiscuous mode 不使用混雜模式
-l     is make stdout line buffered
-D   is replay pcap_dumps with their recorded time intervals
-t     is print timestamp every time a packet is matched在每個(gè)匹配的包之前顯示時(shí)間戳
-T    is print delta timestamp every time a packet is matched顯示上一個(gè)匹配的數(shù)據(jù)包之間的時(shí)間間隔
-M   is don't do multi-line match (do single-line match instead)僅進(jìn)行單行匹配
-I     is read packet stream from pcap format file pcap_dump 從文件中讀取數(shù)據(jù)進(jìn)行匹配
-O   is dump matched packets in pcap format to pcap_dump 將匹配的數(shù)據(jù)保存到文件
-n    is look at only num packets 僅捕獲指定數(shù)目的數(shù)據(jù)包進(jìn)行查看
-A   is dump num packets after a match匹配到數(shù)據(jù)包后Dump隨后的指定數(shù)目的數(shù)據(jù)包
-s    is set the bpf caplen
-S   is set the limitlen on matched packets
-W is set the dump format (normal, byline, single, none) 設(shè)置顯示格式byline將解析包中的換行符
-c    is force the column width to the specified size 強(qiáng)制顯示列的寬度
-P   is set the non-printable display char to what is specified
-F   is read the bpf filter from the specified file 使用文件中定義的bpf(Berkeley Packet Filter)
-N   is show sub protocol number 顯示由IANA定義的子協(xié)議號(hào)
-d   is use specified device (index) instead of the pcap default

應(yīng)用舉例：

捕獲所有post請(qǐng)求(加個(gè)-W byline 參數(shù)后,將解析包中的換行符)：

代碼如下:

ranger@ranger:~$ sudo ngrep -q -W byline "(POST).*"
interface: eth0 (192.168.122.0/255.255.254.0)
match: (POST).*

T 192.168.122.74:46048 -> 140.207.228.58:80 [A]
POST /Hotel/OTA_HotelSearch.asmx?wsdl HTTP/1.1.
Content-Type: text/xml; charset=UTF-8.
SOAPAction: http://ctrip.com/Request.
Accept-Encoding: gzip, deflate.
Content-Length: 1330.
Accept: */*.
Accept-Language: zh-cn.
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0).
UA-CPU: x86.
Accept-Encoding: gzip, deflate.
Connection: close.
Host: openapi.ctrip.com.
.
<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"> <soap:Body> <Request xmlns="http://ctrip.com/"> <requestXML><Request>
<Header AllianceID="***" SID="***" TimeStamp="1393554304685" RequestType="OTA_HotelSearch" Signature="B166CDF5422A6DA5BA81A08036E938E7"/>
<HotelRequest>
<RequestBody xmlns:ns="http://www.opentravel.org/OTA/2003/05" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<ns:OTA_HotelSearchRQ Version="1.0" PrimaryLangID="zh"
xsi:schemaLocation="http://www.opentravel.org/OTA/2003/05 OTA_HotelSearchRQ.xsd"

到此，關(guān)于“Linux系統(tǒng)中字符串搜索命令ngrep的用法”的學(xué)習(xí)就結(jié)束了，希望能夠解決大家的疑惑。理論與實(shí)踐的搭配能更好的幫助大家學(xué)習(xí)，快去試試吧！若想繼續(xù)學(xué)習(xí)更多相關(guān)知識(shí)，請(qǐng)繼續(xù)關(guān)注創(chuàng)新互聯(lián)網(wǎng)站，小編會(huì)繼續(xù)努力為大家?guī)?lái)更多實(shí)用的文章！

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