windows - 我怎样才能使批处理文件像使用 Perl 的简单 grep 一样运行？

Question

我已经知道这个问题的明显答案:“只需下载 ”。但是，我在一个环境中工作，本地 IT 人员对我们允许在计算机上拥有的内容进行严格控制。我只想说:我可以在 Windows XP 上访问 Perl。这是我想出的一个快速 Perl 脚本，它可以做我想做的事，但我还没有想出如何设置一个批处理文件，这样我就可以将命令输出通过管道传递给它，或者传递一个文件(或文件列表？)作为“grep 表达式”之后的参数:

perl -n -e "print $_ if (m![expression]!);" [filename]

我如何编写一个批处理脚本，我可以做一些事情，例如:

dir | grep.bat mypattern
grep.bat mypattern myfile.txt

编辑:尽管我标记了另一个“答案”，但我还是想赞扬 Ray Hayes answer ，因为它确实是“Windows 方式”，即使另一个答案在技术上更接近我想要的。

Answer 1

grep 的大部分功能已经在您的计算机上的 Windows 应用程序 FindStr.exe 中可用，它是所有 Windows 2000、XP 和 Vista 计算机的一部分!它提供了 RegExpr 等。

比调用 Perl 的批处理文件容易得多!

c:\>FindStr /?    
Searches for strings in files.

FINDSTR [/B] [/E] [/L] [/R] [/S] [/I] [/X] [/V] [/N] [/M] [/O] [/P] [/F:file]
        [/C:string] [/G:file] [/D:dir list] [/A:color attributes] [/OFF[LINE]]
        strings [[drive:][path]filename[ ...]]

  /B         Matches pattern if at the beginning of a line.
  /E         Matches pattern if at the end of a line.
  /L         Uses search strings literally.
  /R         Uses search strings as regular expressions.
  /S         Searches for matching files in the current directory and all
             subdirectories.
  /I         Specifies that the search is not to be case-sensitive.
  /X         Prints lines that match exactly.
  /V         Prints only lines that do not contain a match.
  /N         Prints the line number before each line that matches.
  /M         Prints only the filename if a file contains a match.
  /O         Prints character offset before each matching line.
  /P         Skip files with non-printable characters.
  /OFF[LINE] Do not skip files with offline attribute set.
  /A:attr    Specifies color attribute with two hex digits. See "color /?"
  /F:file    Reads file list from the specified file(/ stands for console).
  /C:string  Uses specified string as a literal search string.
  /G:file    Gets search strings from the specified file(/ stands for console).
  /D:dir     Search a semicolon delimited list of directories
  strings    Text to be searched for.
  [drive:][path]filename
             Specifies a file or files to search.

Use spaces to separate multiple search strings unless the argument is prefixed
with /C.  For example, 'FINDSTR "hello there" x.y' searches for "hello" or
"there" in file x.y.  'FINDSTR /C:"hello there" x.y' searches for
"hello there" in file x.y.

Regular expression quick reference:
  .        Wildcard: any character
  *        Repeat: zero or more occurances of previous character or class
  ^        Line position: beginning of line
  $        Line position: end of line
  [class]  Character class: any one character in set
  [^class] Inverse class: any one character not in set
  [x-y]    Range: any characters within the specified range
  \x       Escape: literal use of metacharacter x
  \<xyz    Word position: beginning of word
  xyz\>    Word position: end of word