Question

我有两个档案的properties.txt

key1=value1
key2=value2

和使用此文件的template.txt

$key1 xcvsdf sfd $key1 sdf 
$key2 lorem $key2 ipsum

我想用properties.txt替换properties.txt中的所有属性并将其写入文件。我不希望它在python \ java运行时运行，因为它应该在没有先决条件的任何机器上运行

如何使用PowerShell做到这一点？批处理文件？

Answer 1

假设这需要能够在PowerShell 2.0上运行，这就是我要做的：

# Read template from file
$template = Get-Content .\template.txt

# Copy template to result variable
$result = $template

# Loop through list of properties
Get-Content C:\dev\properties.txt |ForEach-Object{
    # Split each line into key-value pairs
    $key,$value = $_ -split '=',2
    # Replace the placeholder with the appropriate value
    $result = $result -replace ('\${0}' -f $key),$value
}

# Output final result
$result |Out-File .\result.txt

Answer 2

@echo off
setlocal EnableDelayedExpansion

rem Load the set of replacement values from properties.txt
set "n=0"
for /F "tokens=1,2 delims==" %%a in (properties.txt) do (
   set /A n+=1
   set "key[!n!]=%%a"
   set "value[!n!]=%%b"
)

rem Process template.txt file
(for /F "delims=" %%a in (template.txt) do (
   set "line=%%a"
   rem Process each replacement value
   for /L %%i in (1,1,%n%) do (
      for /F "tokens=1,2" %%x in ("!key[%%i]! !value[%%i]!") do (
         set "line=!line:$%%x=%%y!"
      )
   )
   echo !line!
)) > output.txt

output.txt的：

value1 xcvsdf sfd value1 sdf
value2 lorem value2 ipsum

此代码删除template.txt文件中可能出现的感叹号。如果需要，这一点可以修复。

从Windows命令提示符搜索和替换文件

2 个答案: