powershell哈希表问题

发布于 2024-10-26 23:14:17 字数 569 浏览 0 评论 0原文

我正在尝试读取一个配置文件，其中包含一些键值对，如下所示：

age = 7
server = \\server\
destination = \\nas\public\server\

这是我用来读取该文件的脚本：

gc "keyval.txt" | % -begin {$h=@{}} -process { $k = [regex]::split($_,'='); if(($k[0].CompareTo("") -ne 0) -and ($k[0].StartsWith("[") -ne $True)) { $h.Add($k[0], $k[1]) } }
$h                    #THIS PRINTS THE KEYS and VALUES
$h.get_item("server") #THIS DOESN'T DO ANYTHING
$h.server             #THIS DOESNT DO ANYTHING AS WELL

我了解到 powershell 中的哈希表存在一些奇怪之处，但无法掌握避免奇怪现象的方法。请帮我解决这个问题。

原文

I am trying to read a config file which has some key value pairs as shown below:

age = 7
server = \\server\
destination = \\nas\public\server\

Here is the script I am using to read the file:

gc "keyval.txt" | % -begin {$h=@{}} -process { $k = [regex]::split($_,'='); if(($k[0].CompareTo("") -ne 0) -and ($k[0].StartsWith("[") -ne $True)) { $h.Add($k[0], $k[1]) } }
$h                    #THIS PRINTS THE KEYS and VALUES
$h.get_item("server") #THIS DOESN'T DO ANYTHING
$h.server             #THIS DOESNT DO ANYTHING AS WELL

I learnt that there are some oddities with hashtables in powershell, but could not get a hold on the way to avoid the oddities. Please help me resolve this issue.

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穿透光 2024-11-02 23:14:18

如果您不想修改该文件：

$re = '\s*(\w+)\s*=\s*(\S+)'
Get-Content \temp\foo.txt | 
  Foreach {$ht=@{}} {if ($_ -match $re) {$ht.($matches[1]) = $matches[2]}} {$ht}

Name                           Value
----                           -----
age                            7
server                         \\server\
destination                    \\nas\public\server\

If you don't want to modify the file:

$re = '\s*(\w+)\s*=\s*(\S+)'
Get-Content \temp\foo.txt | 
  Foreach {$ht=@{}} {if ($_ -match $re) {$ht.($matches[1]) = $matches[2]}} {$ht}

Name                           Value
----                           -----
age                            7
server                         \\server\
destination                    \\nas\public\server\

回复收藏 0 原文

别挽留 2024-11-02 23:14:18

首先修改你的txt以应用我要教你的方法。地下值部分的每个字符串都必须通过 C# 解释，因此像 \s 或 \p 这样的东西是不好的，因为它们没有任何意义。因此，要使用反斜杠，您需要使用反斜杠对其进行转义，例如 \\\\ 表示两个反斜杠。修复文件后，您必须读取文件的所有内容并应用convertfrom-stringdata cmdlet。这是代码，享受吧。

>> $textfromfile = [IO.File]::ReadAllText((resolve-path .\keyval.txt))
>> $hash = ConvertFrom-StringData $textfromfile
>> $hash

Name                           Value
----                           -----
server                         \\server\
age                            7
destination                    \nas\public\server

PD：修改文件一行

>> (gc .\keyval.txt) | % { $_ -replace '\\', '\\'} | Set-Content .\keyval.txt

first modify your txt to apply the method i'm going to teach you. Underground every string of the values part must be pass the c# interpretation so things like \s or \p are bad because they don't mean anything. So to have a backslash you need to escape it with backslash, example \\\\ means two backslash. After fix the file you must read all the content of the file and apply the convertfrom-stringdata cmdlet. Here is the code, enjoy.

>> $textfromfile = [IO.File]::ReadAllText((resolve-path .\keyval.txt))
>> $hash = ConvertFrom-StringData $textfromfile
>> $hash

Name                           Value
----                           -----
server                         \\server\
age                            7
destination                    \nas\public\server

PD: modify the file is one line

>> (gc .\keyval.txt) | % { $_ -replace '\\', '\\'} | Set-Content .\keyval.txt

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扮仙女 2024-11-02 23:14:18

 $h = @{}
 gc keyval.txt |% {
 $h[$_.split("=")[0].trim()] = $_.split("=")[1].trim()
 }
 $h 
 $h.get_item("server")
 $h.server

 Name                                 Value                                                                                      
 ----                           -----                                                                                      
 age                            7                                                                                          
 server                         \\server\                                                                                  
 destination                    \\nas\public\server\                                                                       
 \\server\
 \\server\

 $h = @{}
 gc keyval.txt |% {
 $h[$_.split("=")[0].trim()] = $_.split("=")[1].trim()
 }
 $h 
 $h.get_item("server")
 $h.server

 Name                                 Value                                                                                      
 ----                           -----                                                                                      
 age                            7                                                                                          
 server                         \\server\                                                                                  
 destination                    \\nas\public\server\                                                                       
 \\server\
 \\server\

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