批處理腳本替換文件的第7行中的文本？

Question

我有一個文件，其變量在第7行聲明為VERSION = 6.0.196.0。 我需要將此行編輯為VERSION = 6.0.200.0

第15行為MANIFEST_BUILD => 196。 這應該更改為MANIFEST_BUILD => 200。 這個怎么做？

Answer 1

本回答中的所有解決方案僅使用Windows XP及更高版本的本機命令。

1）這是迄今為止最快的本地批處理解決方案，但它具有最多的限制

• 文件中的前15行中沒有一行可以超過1021個字節
• 所有前15行必須以<carriageReturn><lineFeed> （Windows樣式）終止，而不是<lineFeed> （unix樣式）。
• 前15行中沒有一行可以以控制字符結尾（當然除了行終止符）

XP和Windows 7還有一個附加限制：文件的最后一行必須以<lineFeed>結尾。 如果由於FINDSTR中的錯誤導致最后一行未以<linefeed> linefeed <linefeed>結尾，則腳本將無限期掛起。 請參閱Windows FINDSTR命令的未記錄的功能和限制是什么？ 了解更多信息。

@echo off
setlocal enableDelayedExpansion
set "file=test.txt"

REM redirect input from your file and output to a new file
<"%file%" >"%file%.new" (

  REM preserve lines 1-6
  for /l %%N in (1 1 6) do (
    set "ln="
    set /p "ln="
    echo(!ln!
  )

  REM replace the next line (7)
  set /p "ln="
  echo VERSION=6.0.196.0

  REM preserve lines 8-14
  for /l %%N in (8 1 14) do (
    set "ln="
    set /p "ln="
    echo(!ln!
  )

  REM replace the next line (15)
  set /p "ln="
  REM The > below must be escaped
  echo MANIFEST_BUILD =^>200

  REM preserve the remaining lines
  findstr "^"

)

REM replace your original file with the new file
>nul move /y "%file%.new" "%file%"

2）下一個選項要慢得多，但限制要少得多。

• 沒有行可以超過~8191字節
• 沒有行可以開始:

此外，無論原始文件使用何種類型的終止符，輸出中的所有行都將由<carriageReturn><lineFeed>終止。

@echo off
setlocal disableDelayedExpansion
set "file=test.txt"

>"%file%.new" (
  for /f "tokens=1* delims=:" %%A in ('findstr /n "^" "%file%"') do (
    if %%A==7 (
        echo VERSION=6.0.196.0
    ) else if %%A==15 (
        echo MANIFEST_BUILD =^>200
    ) else echo(%%B
  )
)
move /y "%file%.new" "%file%"

3）此選項與選項2幾乎相同，只是它允許以以下行開頭: 。 它甚至比選項2）慢。

@echo off
setlocal disableDelayedExpansion
set "file=test.txt"

>"%file%.new" (
  for /f "delims=" %%A in ('findstr /n "^" "%file%"') do (
    for /f "delims=:" %%B in ("%%A") do (
      if %%B==7 (
          echo VERSION=6.0.196.0
      ) else if %%B==15 (
          echo MANIFEST_BUILD =^>200
      ) else (
          set "ln=%%A"
          setlocal enableDelayedExpansion
          echo(!ln:*:=!
          endlocal
      )
    )
  )
)
move /y "%file%.new" "%file%"

4）最后一個選項是迄今為止最強大的選項。 它使用我編寫的混合JScript / Batch實用程序腳本，可用於處理文本文件。 該腳本仍然只使用所有現代Windows平台（XP以后）本機的命令。

此選項比選項1慢，但它可以在合理的時間內處理非常大的文件。 它比選項2和3快得多，對於大文件來說速度太慢了。

此選項還會保留原始文件中存在的行終止符。

我不知道這個選項的任何限制。

這是依賴於REPL.BAT實用程序的腳本

@echo off
set "file=test.txt"
findstr /n "^" "%file%" | repl "^(7:.*)" "VERSION=6.0.196.0" m | repl "^(15:.*)" "MANIFEST_BUILD =>200" m | repl "^\d*:" "" m>"%file%.new"
>nul move /y "%file%.new" "%file%"

這是上面腳本所需的REPL.BAT實用程序。 REPL.BAT應該放在你的PATH中。 完整文檔嵌入在腳本中。

@if (@X)==(@Y) @end /* Harmless hybrid line that begins a JScript comment

::************ Documentation ***********
:::
:::REPL  Search  Replace  [Options  [SourceVar]]
:::REPL  /?
:::
:::  Performs a global search and replace operation on each line of input from
:::  stdin and prints the result to stdout.
:::
:::  Each parameter may be optionally enclosed by double quotes. The double
:::  quotes are not considered part of the argument. The quotes are required
:::  if the parameter contains a batch token delimiter like space, tab, comma,
:::  semicolon. The quotes should also be used if the argument contains a
:::  batch special character like &, |, etc. so that the special character
:::  does not need to be escaped with ^.
:::
:::  If called with a single argument of /? then prints help documentation
:::  to stdout.
:::
:::  Search  - By default this is a case sensitive JScript (ECMA) regular
:::            expression expressed as a string.
:::
:::            JScript syntax documentation is available at
:::            http://msdn.microsoft.com/en-us/library/ae5bf541(v=vs.80).aspx
:::
:::  Replace - By default this is the string to be used as a replacement for
:::            each found search expression. Full support is provided for
:::            substituion patterns available to the JScript replace method.
:::            A $ literal can be escaped as $$. An empty replacement string
:::            must be represented as "".
:::
:::            Replace substitution pattern syntax is documented at
:::            http://msdn.microsoft.com/en-US/library/efy6s3e6(v=vs.80).aspx
:::
:::  Options - An optional string of characters used to alter the behavior
:::            of REPL. The option characters are case insensitive, and may
:::            appear in any order.
:::
:::            I - Makes the search case-insensitive.
:::
:::            L - The Search is treated as a string literal instead of a
:::                regular expression. Also, all $ found in Replace are
:::                treated as $ literals.
:::
:::            E - Search and Replace represent the name of environment
:::                variables that contain the respective values. An undefined
:::                variable is treated as an empty string.
:::
:::            M - Multi-line mode. The entire contents of stdin is read and
:::                processed in one pass instead of line by line. ^ anchors
:::                the beginning of a line and $ anchors the end of a line.
:::
:::            X - Enables extended substitution pattern syntax with support
:::                for the following escape sequences:
:::
:::                \\     -  Backslash
:::                \b     -  Backspace
:::                \f     -  Formfeed
:::                \n     -  Newline
:::                \r     -  Carriage Return
:::                \t     -  Horizontal Tab
:::                \v     -  Vertical Tab
:::                \xnn   -  Ascii (Latin 1) character expressed as 2 hex digits
:::                \unnnn -  Unicode character expressed as 4 hex digits
:::
:::                Escape sequences are supported even when the L option is used.
:::
:::            S - The source is read from an environment variable instead of
:::                from stdin. The name of the source environment variable is
:::                specified in the next argument after the option string.
:::

::************ Batch portion ***********
@echo off
if .%2 equ . (
  if "%~1" equ "/?" (
    findstr "^:::" "%~f0" | cscript //E:JScript //nologo "%~f0" "^:::" ""
    exit /b 0
  ) else (
    call :err "Insufficient arguments"
    exit /b 1
  )
)
echo(%~3|findstr /i "[^SMILEX]" >nul && (
  call :err "Invalid option(s)"
  exit /b 1
)
cscript //E:JScript //nologo "%~f0" %*
exit /b 0

:err
>&2 echo ERROR: %~1. Use REPL /? to get help.
exit /b

************* JScript portion **********/
var env=WScript.CreateObject("WScript.Shell").Environment("Process");
var args=WScript.Arguments;
var search=args.Item(0);
var replace=args.Item(1);
var options="g";
if (args.length>2) {
  options+=args.Item(2).toLowerCase();
}
var multi=(options.indexOf("m")>=0);
var srcVar=(options.indexOf("s")>=0);
if (srcVar) {
  options=options.replace(/s/g,"");
}
if (options.indexOf("e")>=0) {
  options=options.replace(/e/g,"");
  search=env(search);
  replace=env(replace);
}
if (options.indexOf("l")>=0) {
  options=options.replace(/l/g,"");
  search=search.replace(/([.^$*+?()[{\\|])/g,"\\$1");
  replace=replace.replace(/\$/g,"$$$$");
}
if (options.indexOf("x")>=0) {
  options=options.replace(/x/g,"");
  replace=replace.replace(/\\\\/g,"\\B");
  replace=replace.replace(/\\b/g,"\b");
  replace=replace.replace(/\\f/g,"\f");
  replace=replace.replace(/\\n/g,"\n");
  replace=replace.replace(/\\r/g,"\r");
  replace=replace.replace(/\\t/g,"\t");
  replace=replace.replace(/\\v/g,"\v");
  replace=replace.replace(/\\x[0-9a-fA-F]{2}|\\u[0-9a-fA-F]{4}/g,
    function($0,$1,$2){
      return String.fromCharCode(parseInt("0x"+$0.substring(2)));
    }
  );
  replace=replace.replace(/\\B/g,"\\");
}
var search=new RegExp(search,options);

if (srcVar) {
  WScript.Stdout.Write(env(args.Item(3)).replace(search,replace));
} else {
  while (!WScript.StdIn.AtEndOfStream) {
    if (multi) {
      WScript.Stdout.Write(WScript.StdIn.ReadAll().replace(search,replace));
    } else {
      WScript.Stdout.WriteLine(WScript.StdIn.ReadLine().replace(search,replace));
    }
  }
}