2016-11-16 70 views
0

在我的分析過程中,爲什麼我的腳本無法正常工作,我可以找到一些解決方案來解決一些基本的部分(在Stackoverflow的幫助下),但仍然存在一個問題:我找不到解決方案。PowerShell測試路徑不適用於參數參數

當我創建一個臨時目錄變量$ PARAM_TEMP,並用Test-Path檢查這一切都工作正常(目錄是否存在)。但在下一部分中,當我使用相同的技術來處理參數參數$ PARAM_DESTINATION時,語句結果是錯誤的(我已經發現添加單引號的提示 - 在此之後,至少腳本運行時沒有錯誤)。 當我測試的測試輸出在Windows的資源管理器控制檯,它找到的目錄(因此它肯定存在)

這裏是我的腳本的內容BeforeInstallationScript2.ps1:

# 
# BeforeInstallationScript2.ps1 
# 
param(
     [Parameter(
        Mandatory=$true, 
        Position=0, 
        HelpMessage='Path to targetDir')] 
     [string] $PARAM_DESTINATION 
) 
"1st Argument: $PARAM_DESTINATION" 

# create temporary directory if not exists 
$PARAM_TEMP=$env:TEMP+"\MyApp" 
"temporary Directory: $PARAM_TEMP" 
if(!(Test-Path -Path "$PARAM_TEMP")){ 
    "temp-dir does NOT exist and will be created" 
    New-Item -ItemType directory -Path $PARAM_TEMP 
} else { 
    "temp-dir exist" 
} 

# create Timestamp-variable for saving configs 
$a = Get-Date 
$DATETIME= "" + $a.Year + $a.Month + $a.Day + $a.Hour + $a.Minute 
"Timestamp: $DATETIME" 

# if there exists already a myApp-Installation, copy config-files 
"Parameter-Path=: $PARAM_DESTINATION" 
"exists? = " + (Test-Path "'$PARAM_DESTINATION'") 
if((Test-Path -Path "'$PARAM_DESTINATION'")) { 
    "param-path exists" 

    if((Test-Path -Path "'$PARAM_DESTINATION\configuration\MyApp.conf'")) { 
     "copy file to $PARAM_TEMP\$DATETIME-MyApp.conf" 
     Copy-Item "$PARAM_DESTINATION\configuration\MyApp.conf" "$PARAM_TEMP\$DATETIME-MyApp.conf" 
    } 
} else { 
    "not existing, no files to copy/save" 
} 

我此腳本在PowerShell中得到的輸出如下:

PS X:\MyApp-Setup> C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe -Version 2.0 -NoProfile -NonInteractive -InputFormat None -ExecutionPolicy Bypass -File ".\BeforeInstallationScript2.ps1" "C:\Program Files (x86)\Internet Explorer" 
1st Argument: C:\Program Files (x86)\Internet Explorer 
temporary Directory: C:\Users\ixmid\AppData\Local\Temp\MyApp 
temp-dir does NOT exist and will be created 


    Verzeichnis: C:\Users\USER\AppData\Local\Temp 


Mode    LastWriteTime  Length Name 
----    -------------  ------ ---- 
d----  16.11.2016  11:01   MyApp 
Timestamp: 20161116111 
Parameter-Path=: C:\Program Files (x86)\Internet Explorer 
exists? = False 
not existing, no files to copy/save 


PS X:\MyApp-Setup> 

正如你所看到的,第一個測試路徑正常工作,並創建缺少的目錄。但在第二部分它不能正常工作。 任何建議,爲什麼第二個(和第三個)測試路徑語句工作錯誤?

完成:執行腳本(當MyApp的目錄現在存在)的第二輸出如下:

1st Argument: C:\Program Files (x86)\Internet Explorer 
temporary Directory: C:\Users\USER\AppData\Local\Temp\MyApp 
temp-dir exist 
Timestamp: 201611161113 
Parameter-Path=: C:\Program Files (x86)\Internet Explorer 
exists? = False 
not existing, no files to copy/save 

回答