如何从Windows命令shell中的文件B中删除文件A中的行？

Question

This other question非常适合加入两个文件。我需要做相反的事情。我需要从文件A中删除文件B中的行。

此问题类似于this other question，但问题是针对unix，这是针对windows命令shell（cmd.exe）。

我想使用Windows 7 Pro原生的工具。

更新

文件是主机文件。每一行都包含以下行：

• 127.0.0.1 host.domain.com

或

• 0.0.0.0 host.domain.com

或

• # this is a comment

文件最多可包含200,000行。可能存在空格和制表符。

虽然我更喜欢保留它，但顺序不会影响功能。

以下是主机文件的一些示例：

• https://adaway.org/hosts.txt
• https://pgl.yoyo.org/adservers/serverlist.php?hostformat=hosts&showintro=0&mimetype=plaintext
• https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts
• https://hosts-file.net/ad_servers.txt
• http://winhelp2002.mvps.org/hosts.txt
• http://someonewhocares.org/hosts/hosts

（对于这个问题，不要担心0.0.0.0 vs＆＃39; 127.0.0.1`。）

Answer 1

findstr /v /x /g:"fileb" "filea">resultfile

查找文件A中没有（/v）的字符串与/x中的字符串完全匹配（fileb。

Answer 2

您没有为此问题提供单一规范！这些文件可能有特殊字符或空格吗？他们可能有多少行？输出文件必须与FileA的顺序相同吗？

此解决方案可能会或可能不会取决于一系列因素......

@echo off
setlocal

rem Load lines from File A into "fileA" array
for /F "delims=" %%a in (FileA.txt) do set "fileA["%%a"]=1"

rem Remove elements from "fileA" array that are in File B
for /F "delims=" %%b in (FileB.txt) do set "fileA["%%b"]="

rem Show remaining elements
for /F "tokens=2 delims=[]" %%a in ('set fileA[') do echo(%%~a

Answer 3

dbenham在comment中指出，<root> <SHPR_TOT_NRG_FCAST_OUT> <METADATA> <TMSTMP>2017-02-10T10:15:44</TMSTMP> </METADATA> <SHPR_TOT_NRG_FCAST_QRY> <GAS_DAY>2017-02-10</GAS_DAY> </SHPR_TOT_NRG_FCAST_QRY> <DTL> <NRG_FCAST_DTL> <CRT_DT>2017-02-09</CRT_DT> <CRT_TM>11:01:21</CRT_TM> <TOT_FCAST>13847690</TOT_FCAST> <CNG_SNCE_LST_NM>99.0</CNG_SNCE_LST_NM> <NA_RNM_UPDTD>Y</NA_RNM_UPDTD> </NRG_FCAST_DTL> <NRG_FCAST_DTL> <CRT_DT>2017-02-09</CRT_DT> <CRT_TM>13:01:59</CRT_TM> <TOT_FCAST>13780670</TOT_FCAST> <CNG_SNCE_LST_NM>-0.5</CNG_SNCE_LST_NM> <NA_RNM_UPDTD>Y</NA_RNM_UPDTD> </NRG_FCAST_DTL> <NRG_FCAST_DTL> <CRT_DT>2017-02-09</CRT_DT> <CRT_TM>16:01:03</CRT_TM> <TOT_FCAST>13889719</TOT_FCAST> <CNG_SNCE_LST_NM>0.8</CNG_SNCE_LST_NM> <NA_RNM_UPDTD>Y</NA_RNM_UPDTD> </NRG_FCAST_DTL> <NRG_FCAST_DTL> <CRT_DT>2017-02-10</CRT_DT> <CRT_TM>00:01:07</CRT_TM> <TOT_FCAST>13862376</TOT_FCAST> <CNG_SNCE_LST_NM>-0.2</CNG_SNCE_LST_NM> <NA_RNM_UPDTD>Y</NA_RNM_UPDTD> </NRG_FCAST_DTL> <NRG_FCAST_DTL> <CRT_DT>2017-02-10</CRT_DT> <CRT_TM>10:01:01</CRT_TM> <TOT_FCAST>13679133</TOT_FCAST> <CNG_SNCE_LST_NM>-1.3</CNG_SNCE_LST_NM> <NA_RNM_UPDTD>Y</NA_RNM_UPDTD> </NRG_FCAST_DTL> </DTL> </SHPR_TOT_NRG_FCAST_OUT> <SHPR_TOT_NRG_FCAST_OUT> <METADATA> <TMSTMP>2017-02-10T10:15:44</TMSTMP> </METADATA> <SHPR_TOT_NRG_FCAST_QRY> <GAS_DAY>2017-02-11</GAS_DAY> </SHPR_TOT_NRG_FCAST_QRY> <DTL> <NRG_FCAST_DTL> <CRT_DT>2017-02-10</CRT_DT> <CRT_TM>11:01:21</CRT_TM> <TOT_FCAST>338473240</TOT_FCAST> <CNG_SNCE_LST_NM>99.0</CNG_SNCE_LST_NM> <NA_RNM_UPDTD>Y</NA_RNM_UPDTD> </NRG_FCAST_DTL> <NRG_FCAST_DTL> <CRT_DT>2017-02-10</CRT_DT> <CRT_TM>13:01:59</CRT_TM> <TOT_FCAST>13780670</TOT_FCAST> <CNG_SNCE_LST_NM>10.5</CNG_SNCE_LST_NM> <NA_RNM_UPDTD>Y</NA_RNM_UPDTD> </NRG_FCAST_DTL> <NRG_FCAST_DTL> <CRT_DT>2017-02-10</CRT_DT> <CRT_TM>16:01:03</CRT_TM> <TOT_FCAST>23889719</TOT_FCAST> <CNG_SNCE_LST_NM>3.8</CNG_SNCE_LST_NM> <NA_RNM_UPDTD>Y</NA_RNM_UPDTD> </NRG_FCAST_DTL> <NRG_FCAST_DTL> <CRT_DT>2017-02-11</CRT_DT> <CRT_TM>00:01:07</CRT_TM> <TOT_FCAST>13432376</TOT_FCAST> <CNG_SNCE_LST_NM>10.2</CNG_SNCE_LST_NM> <NA_RNM_UPDTD>Y</NA_RNM_UPDTD> </NRG_FCAST_DTL> <NRG_FCAST_DTL> <CRT_DT>2017-02-11</CRT_DT> <CRT_TM>10:01:01</CRT_TM> <TOT_FCAST>13432133</TOT_FCAST> <CNG_SNCE_LST_NM>-1.3</CNG_SNCE_LST_NM> <NA_RNM_UPDTD>Y</NA_RNM_UPDTD> </NRG_FCAST_DTL> </DTL> </SHPR_TOT_NRG_FCAST_OUT> </root> 存在多个文字搜索字符串的错误 - 引用此帖子：Why doesn't this FINDSTR example with multiple literal search strings find a match?。要解决此问题，您可以在命令提示符中执行以下操作：

<?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                              xmlns:fo="http://www.w3.org/1999/XSL/Format" >
<xsl:output method="text" omit-xml-declaration="yes" indent="no"/>
<xsl:template match="/">GAS_DAY,CRT_DT,CRT_TM,TOT_FCAST,CNG_SNCE_LST_NM,NA_RNM_UPDTD
<xsl:for-each select="//DTL//NRG_FCAST_DTL">
     <xsl:value-of select="concat(SHPR_TOT_NRG_FCAST_QRY//GAS_DAY,',',CRT_DT, ',' ,CRT_TM,',' ,TOT_FCAST,',' ,CNG_SNCE_LST_NM,',' ,NA_RNM_UPDTD,'
     ')"/>
        <xsl:text>&#xa;</xsl:text> <!-- Add a newline at the end of the record -->
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>

或在批处理文件中：

findstr

首先将copy "fileB" "fileC" & (for /F usebackq^ delims^= eol^= %L in ("fileA") do findstr /V /X /C:"%L" "fileC" > "fileC") & move /Y "fileC" "fileB" 复制为copy "fileB" "fileC" for /F usebackq^ delims^= eol^= %%L in ("fileA") do ( findstr /V /X /C:"%%L" "fileC" > "fileC" ) move /Y "fileC" "fileB" ，然后从fileB中逐行删除与fileC匹配的行，然后将原始fileC替换为已修改fileA。