For循環和查找命令

For循環和查找命令

我只想解析 find 指令的行號。這是我的嘗試:

FOR /f "tokens=1 delims=[" %a IN ('find /n "string" 2.txt') DO @ECHO %a

但它返回某物。像那樣:

---------- 2.TXT
2]string

而不僅僅是:

---------- 2.TXT

當我將分隔符號更改為 ] - 沒關係 - %a 包含:

---------- 2.TXT
[2

正如預期的那樣。

答案1

FIND
Search for a text string in a file & display all the lines where it is found.

Syntax
      FIND [/V] [/C] [/N] [/I] "string" [pathname(s)]

Key
   "string"    The text string to find (must be in quotes).

   [pathname]  A drive/file(s) to search (wildcards accepted).

  ⇉  /V        Display all lines NOT containing the specified string.

     /C        Count the number of lines containing the string.

     /N        Display Line numbers.

     /I        Ignore the case of characters when searching for the string.

  [/off[line]] Do not skip files that have the offline attribute set.

1.您不需要將分隔符號定義為"["或者"]"

> for /f delims^= %a IN ('find/n "string" 2.txt^|find/v "["')do @echo=%a

觀察:在以下位置使用一個空格:delims^=ESPACE%a

2.只需添加一個^|find/v "[", 省略包含以下內容的行[n]在輸出中

> for /f delims^= %a IN ('find/n "string" 2.txt^|find/v "["')do @echo=%a
---------- 2.TXT
  • 僅取得檔案名稱:
> for /f tokens^=1*delims^=-^  %a IN ('find/n "string" 2.txt^|find/v "["')do @echo=%a
2.TXT

觀察:在以下位置使用兩個空格:delims^=-^ESPACEESPACE%a


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