发表更新powershell / cloud2 分钟读完 (大约316个字)

PowerShell 技能连载 - Azure Functions自动化管理

在无服务器架构日益普及的今天，Azure Functions作为事件驱动的计算服务广受欢迎。本文将演示如何通过PowerShell实现Functions的自动化部署与监控，帮助运维人员提升云端资源管理效率。

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function Manage-AzureFunction {
    param(
        [ValidateSet('Create','Update','Remove')]
        [string]$Action,
        [string]$FunctionName,
        [string]$ResourceGroup
    )

    try {
        # 身份验证检查
        if (-not (Get-AzContext)) {
            Connect-AzAccount -UseDeviceAuthentication
        }

        switch ($Action) {
            'Create' {
                New-AzFunctionApp -Name $FunctionName -ResourceGroupName $ResourceGroup `
                    -Runtime PowerShell -StorageAccount (Get-AzStorageAccount -ResourceGroupName $ResourceGroup).StorageAccountName `
                    -FunctionsVersion 4 -Location 'EastUS'
            }
            'Update' {
                Publish-AzWebApp -ResourceGroupName $ResourceGroup -Name $FunctionName `
                    -ArchivePath (Compress-Archive -Path ./src -DestinationPath function.zip -Force)
            }
            'Remove' {
                Remove-AzFunctionApp -Name $FunctionName -ResourceGroupName $ResourceGroup -Force
            }
        }

        # 获取运行状态
        $status = Get-AzFunctionApp -Name $FunctionName -ResourceGroupName $ResourceGroup
        Write-Host "操作成功：$($status.State)"
    }
    catch {
        Write-Error "操作失败：$_"
    }
}

实现原理分析：

  1. 通过Azure PowerShell模块实现与云端的认证交互
  2. 参数验证机制确保操作类型合法性
  3. 支持创建/更新/删除三大核心操作的生命周期管理
  4. 部署时自动压缩源代码为ZIP包进行上传
  5. 操作完成后实时获取并返回函数运行状态

该脚本将原本需要多次点击门户的操作简化为单条命令，特别适合需要批量管理多个函数应用的DevOps场景。

发表更新powershell / basic几秒读完 (大约101个字)

PowerShell函数高级应用指南

函数参数校验

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function Get-UserInfo {
    param(
        [Parameter(Mandatory)]
        [ValidatePattern('^[a-zA-Z]+$')]
        [string]$UserName,
        
        [ValidateRange(18,120)]
        [int]$Age
    )
    "用户: $UserName 年龄: $Age"
}

管道集成实战

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function Process-Files {
    [CmdletBinding()]
    param(
        [Parameter(ValueFromPipeline)]
        [System.IO.FileInfo[]]$Files
    )
    process {
        $_.FullName | ForEach-Object {
            "处理文件: $_"
        }
    }
}

性能优化建议

  1. 避免在循环内创建函数
  2. 使用begin/process/end块处理流数据
  3. 合理使用参数集(ParameterSet)
  4. 采用类型约束提升执行效率
发表更新powershell / scripting1 分钟读完 (大约127个字)

PowerShell错误处理核心机制

基础错误捕获结构

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try {
    Get-Content 'nonexistent.txt' -ErrorAction Stop
}
catch [System.IO.FileNotFoundException] {
    Write-Host "文件未找到: $($_.Exception.Message)"
}
catch {
    Write-Host "未知错误: $($_.Exception.GetType().FullName)"
}
finally {
    # 清理资源代码
}

错误变量解析

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# 自动变量应用示例
$Error[0] | Format-List * -Force
$Error.Clear()
$ErrorActionPreference = 'Continue'

自定义错误抛出

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function Validate-Range {
    param([int]$Value)
    if ($Value -notin 1..100) {
        throw [System.ArgumentOutOfRangeException]::new('Value')
    }
}

最佳实践

  1. 优先使用强类型异常捕获
  2. 合理设置ErrorActionPreference
  3. 保持finally块简洁
  4. 记录完整错误堆栈信息
发表更新powershell / tip4 分钟读完 (大约671个字)

PowerShell 技能连载 - CIM/WMI 管理技巧

在 PowerShell 中管理 CIM（Common Information Model）和 WMI（Windows Management Instrumentation）是一项重要任务，本文将介绍一些实用的 CIM/WMI 管理技巧。

首先，让我们看看基本的 CIM/WMI 操作：

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# 创建 CIM/WMI 信息获取函数
function Get-CIMInfo {
    param(
        [string]$ComputerName = $env:COMPUTERNAME,
        [string]$Namespace = "root/cimv2",
        [string]$Class
    )
    
    try {
        $session = New-CimSession -ComputerName $ComputerName
        $instances = Get-CimInstance -CimSession $session -Namespace $Namespace -Class $Class
        
        return [PSCustomObject]@{
            ComputerName = $ComputerName
            Namespace = $Namespace
            Class = $Class
            InstanceCount = $instances.Count
            Properties = $instances[0].PSObject.Properties.Name
            Instances = $instances
        }
    }
    catch {
        Write-Host "获取 CIM 信息失败：$_"
    }
    finally {
        if ($session) {
            Remove-CimSession -CimSession $session
        }
    }
}

CIM/WMI 查询优化：

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# 创建 CIM/WMI 查询优化函数
function Optimize-CIMQuery {
    param(
        [string]$ComputerName = $env:COMPUTERNAME,
        [string]$Namespace = "root/cimv2",
        [string]$Class,
        [hashtable]$Filter,
        [string[]]$Properties,
        [int]$Timeout = 30
    )
    
    try {
        $session = New-CimSession -ComputerName $ComputerName -OperationTimeoutSec $Timeout
        
        $query = "SELECT "
        if ($Properties) {
            $query += $Properties -join ","
        }
        else {
            $query += "*"
        }
        $query += " FROM $Class"
        
        if ($Filter) {
            $query += " WHERE " + ($Filter.GetEnumerator() | ForEach-Object {
                "$($_.Key) = '$($_.Value)'"
            }) -join " AND "
        }
        
        $instances = Get-CimInstance -CimSession $session -Namespace $Namespace -Query $query
        
        return [PSCustomObject]@{
            Query = $query
            InstanceCount = $instances.Count
            ExecutionTime = $instances.PSIsContainer
            Results = $instances
        }
    }
    catch {
        Write-Host "查询优化失败：$_"
    }
    finally {
        if ($session) {
            Remove-CimSession -CimSession $session
        }
    }
}

CIM/WMI 方法调用：

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# 创建 CIM/WMI 方法调用函数
function Invoke-CIMMethod {
    param(
        [string]$ComputerName = $env:COMPUTERNAME,
        [string]$Namespace = "root/cimv2",
        [string]$Class,
        [string]$Method,
        [hashtable]$Parameters,
        [hashtable]$Filter
    )
    
    try {
        $session = New-CimSession -ComputerName $ComputerName
        
        $instance = Get-CimInstance -CimSession $session -Namespace $Namespace -Class $Class -Filter ($Filter.GetEnumerator() | ForEach-Object {
            "$($_.Key) = '$($_.Value)'"
        }) -join " AND "
        
        if ($instance) {
            $result = Invoke-CimMethod -CimInstance $instance -MethodName $Method -Arguments $Parameters
            
            return [PSCustomObject]@{
                Success = $result.ReturnValue -eq 0
                ReturnValue = $result.ReturnValue
                ReturnDescription = $result.ReturnDescription
                Parameters = $Parameters
            }
        }
        else {
            throw "未找到匹配的实例"
        }
    }
    catch {
        Write-Host "方法调用失败：$_"
    }
    finally {
        if ($session) {
            Remove-CimSession -CimSession $session
        }
    }
}

CIM/WMI 事件监控：

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# 创建 CIM/WMI 事件监控函数
function Monitor-CIMEvents {
    param(
        [string]$ComputerName = $env:COMPUTERNAME,
        [string]$Namespace = "root/cimv2",
        [string]$Class,
        [hashtable]$Filter,
        [int]$Duration = 3600,
        [scriptblock]$Action
    )
    
    try {
        $session = New-CimSession -ComputerName $ComputerName
        $query = "SELECT * FROM $Class"
        
        if ($Filter) {
            $query += " WHERE " + ($Filter.GetEnumerator() | ForEach-Object {
                "$($_.Key) = '$($_.Value)'"
            }) -join " AND "
        }
        
        $events = Register-CimIndicationEvent -CimSession $session -Namespace $Namespace -Query $query -Action $Action
        
        Start-Sleep -Seconds $Duration
        
        Unregister-Event -SourceIdentifier $events.Name
        Remove-CimSession -CimSession $session
        
        Write-Host "事件监控完成"
    }
    catch {
        Write-Host "事件监控失败：$_"
    }
    finally {
        if ($session) {
            Remove-CimSession -CimSession $session
        }
    }
}

CIM/WMI 性能优化：

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# 创建 CIM/WMI 性能优化函数
function Optimize-CIMPerformance {
    param(
        [string]$ComputerName = $env:COMPUTERNAME,
        [string]$Namespace = "root/cimv2",
        [string]$Class,
        [int]$BatchSize = 100,
        [int]$MaxThreads = 4
    )
    
    try {
        $session = New-CimSession -ComputerName $ComputerName
        $instances = Get-CimInstance -CimSession $session -Namespace $Namespace -Class $Class
        
        $batches = @()
        for ($i = 0; $i -lt $instances.Count; $i += $BatchSize) {
            $batches += $instances[$i..([math]::Min($i + $BatchSize - 1, $instances.Count - 1))]
        }
        
        $results = @()
        $batches | ForEach-Object -ThrottleLimit $MaxThreads -Parallel {
            $batch = $_
            $session = New-CimSession -ComputerName $using:ComputerName
            
            $batch | ForEach-Object {
                # 在这里添加批处理逻辑
                [PSCustomObject]@{
                    Instance = $_.Name
                    Status = "Processed"
                }
            }
            
            Remove-CimSession -CimSession $session
        }
        
        return [PSCustomObject]@{
            TotalInstances = $instances.Count
            BatchCount = $batches.Count
            Results = $results
        }
    }
    catch {
        Write-Host "性能优化失败：$_"
    }
    finally {
        if ($session) {
            Remove-CimSession -CimSession $session
        }
    }
}

这些技巧将帮助您更有效地管理 CIM/WMI。记住，在处理 CIM/WMI 时，始终要注意查询性能和资源使用。同时，建议使用适当的错误处理和会话管理机制来确保操作的可靠性。

发表更新powershell / tip6 分钟读完 (大约959个字)

PowerShell 技能连载 - 零信任架构管理

在零信任架构领域，环境管理对于确保系统和资源的安全性至关重要。本文将介绍如何使用PowerShell构建一个零信任架构管理系统，包括设备健康检查、访问控制、会话管理等功能。

设备健康检查

首先，让我们创建一个用于检查设备健康状态的函数：

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function Check-DeviceHealth {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true)]
        [string]$DeviceID,
        
        [Parameter()]
        [string[]]$CheckTypes,
        
        [Parameter()]
        [hashtable]$Thresholds,
        
        [Parameter()]
        [string]$ReportPath,
        
        [Parameter()]
        [switch]$AutoRemediate
    )
    
    try {
        $checker = [PSCustomObject]@{
            DeviceID = $DeviceID
            StartTime = Get-Date
            HealthStatus = @{}
            Issues = @()
            Remediations = @()
        }
        
        # 获取设备信息
        $device = Get-DeviceInfo -DeviceID $DeviceID
        
        # 执行健康检查
        foreach ($type in $CheckTypes) {
            $check = [PSCustomObject]@{
                Type = $type
                Status = "Unknown"
                Score = 0
                Details = @{}
                Issues = @()
            }
            
            # 检查系统状态
            $systemStatus = Get-SystemStatus `
                -Device $device `
                -Type $type
            
            $check.Details = $systemStatus
            
            # 评估健康状态
            $healthScore = Calculate-HealthScore `
                -Status $systemStatus `
                -Thresholds $Thresholds
            
            $check.Score = $healthScore
            
            # 检查问题
            $issues = Find-HealthIssues `
                -Status $systemStatus `
                -Score $healthScore
            
            if ($issues.Count -gt 0) {
                $check.Issues = $issues
                $check.Status = "Unhealthy"
                $checker.Issues += $issues
                
                # 自动修复
                if ($AutoRemediate) {
                    $remediations = Start-HealthRemediation `
                        -Device $device `
                        -Issues $issues
                    
                    $checker.Remediations += $remediations
                }
            }
            else {
                $check.Status = "Healthy"
            }
            
            $checker.HealthStatus[$type] = $check
        }
        
        # 生成报告
        if ($ReportPath) {
            $report = Generate-HealthReport `
                -Checker $checker `
                -Device $device
            
            $report | ConvertTo-Json -Depth 10 | Out-File -FilePath $ReportPath
        }
        
        # 更新检查器状态
        $checker.EndTime = Get-Date
        
        return $checker
    }
    catch {
        Write-Error "设备健康检查失败：$_"
        return $null
    }
}

访问控制

接下来，创建一个用于管理访问控制的函数：

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function Manage-AccessControl {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true)]
        [string]$ResourceID,
        
        [Parameter()]
        [string[]]$AccessTypes,
        
        [Parameter()]
        [ValidateSet("Strict", "Standard", "Basic")]
        [string]$SecurityLevel = "Standard",
        
        [Parameter()]
        [hashtable]$Policies,
        
        [Parameter()]
        [string]$LogPath
    )
    
    try {
        $manager = [PSCustomObject]@{
            ResourceID = $ResourceID
            StartTime = Get-Date
            AccessControls = @{}
            Sessions = @()
            Violations = @()
        }
        
        # 获取资源信息
        $resource = Get-ResourceInfo -ResourceID $ResourceID
        
        # 配置访问控制
        foreach ($type in $AccessTypes) {
            $control = [PSCustomObject]@{
                Type = $type
                Status = "Unknown"
                Policies = @{}
                AccessList = @()
                Restrictions = @{}
            }
            
            # 应用访问策略
            $policy = Apply-AccessPolicy `
                -Resource $resource `
                -Type $type `
                -Level $SecurityLevel `
                -Policies $Policies
            
            $control.Policies = $policy
            
            # 配置访问限制
            $restrictions = Set-AccessRestrictions `
                -Policy $policy `
                -Resource $resource
            
            $control.Restrictions = $restrictions
            
            # 更新访问列表
            $accessList = Update-AccessList `
                -Resource $resource `
                -Policy $policy
            
            $control.AccessList = $accessList
            
            # 检查访问违规
            $violations = Check-AccessViolations `
                -AccessList $accessList `
                -Policy $policy
            
            if ($violations.Count -gt 0) {
                $control.Status = "Violation"
                $manager.Violations += $violations
            }
            else {
                $control.Status = "Compliant"
            }
            
            $manager.AccessControls[$type] = $control
        }
        
        # 管理访问会话
        $sessions = Manage-AccessSessions `
            -Resource $resource `
            -Controls $manager.AccessControls
        
        $manager.Sessions = $sessions
        
        # 记录访问日志
        if ($LogPath) {
            $manager | ConvertTo-Json -Depth 10 | Out-File -FilePath $LogPath
        }
        
        # 更新管理器状态
        $manager.EndTime = Get-Date
        
        return $manager
    }
    catch {
        Write-Error "访问控制管理失败：$_"
        return $null
    }
}

会话管理

最后，创建一个用于管理访问会话的函数：

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function Manage-AccessSessions {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true)]
        [string]$SessionID,
        
        [Parameter()]
        [string[]]$SessionTypes,
        
        [Parameter()]
        [ValidateSet("Active", "Inactive", "Terminated")]
        [string]$Status = "Active",
        
        [Parameter()]
        [hashtable]$SessionConfig,
        
        [Parameter()]
        [string]$LogPath
    )
    
    try {
        $sessionManager = [PSCustomObject]@{
            SessionID = $SessionID
            StartTime = Get-Date
            Sessions = @{}
            Activities = @()
            SecurityEvents = @()
        }
        
        # 获取会话信息
        $session = Get-SessionInfo -SessionID $SessionID
        
        # 管理会话
        foreach ($type in $SessionTypes) {
            $sessionInfo = [PSCustomObject]@{
                Type = $type
                Status = $Status
                Config = @{}
                Activities = @()
                Security = @{}
            }
            
            # 应用会话配置
            $config = Apply-SessionConfig `
                -Session $session `
                -Type $type `
                -Config $SessionConfig
            
            $sessionInfo.Config = $config
            
            # 监控会话活动
            $activities = Monitor-SessionActivities `
                -Session $session `
                -Type $type
            
            $sessionInfo.Activities = $activities
            $sessionManager.Activities += $activities
            
            # 检查安全事件
            $securityEvents = Check-SecurityEvents `
                -Session $session `
                -Activities $activities
            
            $sessionInfo.Security = $securityEvents
            $sessionManager.SecurityEvents += $securityEvents
            
            # 更新会话状态
            $sessionInfo.Status = Update-SessionStatus `
                -Session $session `
                -Events $securityEvents
            
            $sessionManager.Sessions[$type] = $sessionInfo
        }
        
        # 记录会话日志
        if ($LogPath) {
            $sessionManager | ConvertTo-Json -Depth 10 | Out-File -FilePath $LogPath
        }
        
        # 更新会话管理器状态
        $sessionManager.EndTime = Get-Date
        
        return $sessionManager
    }
    catch {
        Write-Error "会话管理失败：$_"
        return $null
    }
}

使用示例

以下是如何使用这些函数来管理零信任架构的示例：

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# 检查设备健康状态
$checker = Check-DeviceHealth -DeviceID "DEV001" `
    -CheckTypes @("System", "Security", "Compliance") `
    -Thresholds @{
        "System" = @{
            "CPUUsage" = 80
            "MemoryUsage" = 85
            "DiskSpace" = 90
        }
        "Security" = @{
            "AntivirusStatus" = "Enabled"
            "FirewallStatus" = "Enabled"
            "UpdatesStatus" = "UpToDate"
        }
        "Compliance" = @{
            "PolicyCompliance" = 95
            "SecurityScore" = 85
        }
    } `
    -ReportPath "C:\Reports\device_health.json" `
    -AutoRemediate

# 管理访问控制
$manager = Manage-AccessControl -ResourceID "RES001" `
    -AccessTypes @("Network", "Application", "Data") `
    -SecurityLevel "Strict" `
    -Policies @{
        "Network" = @{
            "AllowedIPs" = @("192.168.1.0/24")
            "Ports" = @(80, 443, 3389)
            "Protocols" = @("TCP", "UDP")
        }
        "Application" = @{
            "AllowedApps" = @("Chrome", "Office")
            "BlockedApps" = @("Tor", "P2P")
            "Permissions" = @("Read", "Write")
        }
        "Data" = @{
            "Encryption" = "Required"
            "AccessLevel" = "Restricted"
            "AuditLog" = "Enabled"
        }
    } `
    -LogPath "C:\Logs\access_control.json"

# 管理访问会话
$sessionManager = Manage-AccessSessions -SessionID "SESS001" `
    -SessionTypes @("User", "Service", "System") `
    -Status "Active" `
    -SessionConfig @{
        "User" = @{
            "MaxDuration" = 480
            "IdleTimeout" = 30
            "MFARequired" = $true
        }
        "Service" = @{
            "MaxDuration" = 1440
            "IdleTimeout" = 60
            "MFARequired" = $false
        }
        "System" = @{
            "MaxDuration" = 0
            "IdleTimeout" = 0
            "MFARequired" = $false
        }
    } `
    -LogPath "C:\Logs\session_management.json"

最佳实践

  1. 实施设备健康检查
  2. 管理访问控制
  3. 监控会话活动
  4. 保持详细的运行记录
  5. 定期进行安全评估
  6. 实施安全策略
  7. 建立应急响应机制
  8. 保持系统文档更新
发表更新powershell / scripting1 分钟读完 (大约134个字)

PowerShell变量作用域深度解析

基础作用域类型

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$global:counter = 10  # 全局作用域

function Show-Count {
    $script:total = 20  # 脚本作用域
    $local:temp = 5    # 局部作用域
    $global:counter + $script:total + $local:temp
}

作用域穿透技巧

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# 使用Get-Variable跨作用域访问
Get-Variable counter -Scope Global

# 使用Set-Variable修改父作用域
function Update-Count {
    Set-Variable -Name counter -Value 15 -Scope 1
}

最佳实践

  1. 优先使用参数传递替代跨作用域访问
  2. 谨慎使用global作用域
  3. 在模块中使用$script作用域保持状态
  4. 使用private修饰符保护关键变量
发表更新powershell / tip7 分钟读完 (大约1116个字)

PowerShell 技能连载 - 制造业集成

在制造业，PowerShell可以帮助我们更好地管理生产线、设备监控和库存控制。本文将介绍如何使用PowerShell构建一个制造业管理系统，包括生产线管理、设备监控和库存控制等功能。

生产线管理

首先，让我们创建一个用于管理生产线的函数：

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function Manage-ProductionLine {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true)]
        [string]$LineID,
        
        [Parameter()]
        [string[]]$LineTypes,
        
        [Parameter()]
        [ValidateSet("Monitor", "Control", "Optimize")]
        [string]$OperationMode = "Monitor",
        
        [Parameter()]
        [hashtable]$LineConfig,
        
        [Parameter()]
        [string]$LogPath
    )
    
    try {
        $manager = [PSCustomObject]@{
            LineID = $LineID
            StartTime = Get-Date
            LineStatus = @{}
            Operations = @{}
            Issues = @()
        }
        
        # 获取生产线配置
        $config = Get-LineConfig -LineID $LineID
        
        # 管理生产线
        foreach ($type in $LineTypes) {
            $status = [PSCustomObject]@{
                Type = $type
                Status = "Unknown"
                Config = @{}
                Operations = @{}
                Issues = @()
            }
            
            # 应用生产线配置
            $typeConfig = Apply-LineConfig `
                -Config $config `
                -Type $type `
                -Mode $OperationMode `
                -Settings $LineConfig
            
            $status.Config = $typeConfig
            
            # 执行生产线操作
            $operations = Execute-LineOperations `
                -Type $type `
                -Config $typeConfig
            
            $status.Operations = $operations
            $manager.Operations[$type] = $operations
            
            # 检查生产线问题
            $issues = Check-LineIssues `
                -Operations $operations `
                -Config $typeConfig
            
            $status.Issues = $issues
            $manager.Issues += $issues
            
            # 更新生产线状态
            if ($issues.Count -gt 0) {
                $status.Status = "Warning"
            }
            else {
                $status.Status = "Normal"
            }
            
            $manager.LineStatus[$type] = $status
        }
        
        # 记录生产线日志
        if ($LogPath) {
            $manager | ConvertTo-Json -Depth 10 | Out-File -FilePath $LogPath
        }
        
        # 更新管理器状态
        $manager.EndTime = Get-Date
        
        return $manager
    }
    catch {
        Write-Error "生产线管理失败：$_"
        return $null
    }
}

设备监控

接下来，创建一个用于监控制造设备的函数：

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function Monitor-ManufacturingDevices {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true)]
        [string]$MonitorID,
        
        [Parameter()]
        [string[]]$DeviceTypes,
        
        [Parameter()]
        [ValidateSet("Status", "Performance", "Maintenance")]
        [string]$MonitorMode = "Status",
        
        [Parameter()]
        [hashtable]$MonitorConfig,
        
        [Parameter()]
        [string]$ReportPath
    )
    
    try {
        $monitor = [PSCustomObject]@{
            MonitorID = $MonitorID
            StartTime = Get-Date
            DeviceStatus = @{}
            Metrics = @{}
            Alerts = @()
        }
        
        # 获取监控配置
        $config = Get-MonitorConfig -MonitorID $MonitorID
        
        # 监控设备
        foreach ($type in $DeviceTypes) {
            $status = [PSCustomObject]@{
                Type = $type
                Status = "Unknown"
                Config = @{}
                Metrics = @{}
                Alerts = @()
            }
            
            # 应用监控配置
            $typeConfig = Apply-MonitorConfig `
                -Config $config `
                -Type $type `
                -Mode $MonitorMode `
                -Settings $MonitorConfig
            
            $status.Config = $typeConfig
            
            # 收集设备指标
            $metrics = Collect-DeviceMetrics `
                -Type $type `
                -Config $typeConfig
            
            $status.Metrics = $metrics
            $monitor.Metrics[$type] = $metrics
            
            # 检查设备告警
            $alerts = Check-DeviceAlerts `
                -Metrics $metrics `
                -Config $typeConfig
            
            $status.Alerts = $alerts
            $monitor.Alerts += $alerts
            
            # 更新设备状态
            if ($alerts.Count -gt 0) {
                $status.Status = "Warning"
            }
            else {
                $status.Status = "Normal"
            }
            
            $monitor.DeviceStatus[$type] = $status
        }
        
        # 生成报告
        if ($ReportPath) {
            $report = Generate-MonitorReport `
                -Monitor $monitor `
                -Config $config
            
            $report | ConvertTo-Json -Depth 10 | Out-File -FilePath $ReportPath
        }
        
        # 更新监控器状态
        $monitor.EndTime = Get-Date
        
        return $monitor
    }
    catch {
        Write-Error "设备监控失败：$_"
        return $null
    }
}

库存控制

最后，创建一个用于控制库存的函数：

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function Manage-Inventory {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true)]
        [string]$InventoryID,
        
        [Parameter()]
        [string[]]$InventoryTypes,
        
        [Parameter()]
        [ValidateSet("Track", "Optimize", "Report")]
        [string]$OperationMode = "Track",
        
        [Parameter()]
        [hashtable]$InventoryConfig,
        
        [Parameter()]
        [string]$ReportPath
    )
    
    try {
        $manager = [PSCustomObject]@{
            InventoryID = $InventoryID
            StartTime = Get-Date
            InventoryStatus = @{}
            Operations = @{}
            Issues = @()
        }
        
        # 获取库存配置
        $config = Get-InventoryConfig -InventoryID $InventoryID
        
        # 管理库存
        foreach ($type in $InventoryTypes) {
            $status = [PSCustomObject]@{
                Type = $type
                Status = "Unknown"
                Config = @{}
                Operations = @{}
                Issues = @()
            }
            
            # 应用库存配置
            $typeConfig = Apply-InventoryConfig `
                -Config $config `
                -Type $type `
                -Mode $OperationMode `
                -Settings $InventoryConfig
            
            $status.Config = $typeConfig
            
            # 执行库存操作
            $operations = Execute-InventoryOperations `
                -Type $type `
                -Config $typeConfig
            
            $status.Operations = $operations
            $manager.Operations[$type] = $operations
            
            # 检查库存问题
            $issues = Check-InventoryIssues `
                -Operations $operations `
                -Config $typeConfig
            
            $status.Issues = $issues
            $manager.Issues += $issues
            
            # 更新库存状态
            if ($issues.Count -gt 0) {
                $status.Status = "Warning"
            }
            else {
                $status.Status = "Normal"
            }
            
            $manager.InventoryStatus[$type] = $status
        }
        
        # 生成报告
        if ($ReportPath) {
            $report = Generate-InventoryReport `
                -Manager $manager `
                -Config $config
            
            $report | ConvertTo-Json -Depth 10 | Out-File -FilePath $ReportPath
        }
        
        # 更新管理器状态
        $manager.EndTime = Get-Date
        
        return $manager
    }
    catch {
        Write-Error "库存控制失败：$_"
        return $null
    }
}

使用示例

以下是如何使用这些函数来管理制造环境的示例：

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# 管理生产线
$manager = Manage-ProductionLine -LineID "LINE001" `
    -LineTypes @("Assembly", "Packaging", "Quality") `
    -OperationMode "Monitor" `
    -LineConfig @{
        "Assembly" = @{
            "Stations" = @{
                "Station1" = @{
                    "Metrics" = @("Efficiency", "Quality", "Downtime")
                    "Threshold" = 95
                    "Interval" = 60
                }
                "Station2" = @{
                    "Metrics" = @("Efficiency", "Quality", "Downtime")
                    "Threshold" = 95
                    "Interval" = 60
                }
            }
            "Controls" = @{
                "Speed" = $true
                "Temperature" = $true
                "Pressure" = $true
            }
        }
        "Packaging" = @{
            "Stations" = @{
                "Station1" = @{
                    "Metrics" = @("Speed", "Accuracy", "Waste")
                    "Threshold" = 90
                    "Interval" = 30
                }
                "Station2" = @{
                    "Metrics" = @("Speed", "Accuracy", "Waste")
                    "Threshold" = 90
                    "Interval" = 30
                }
            }
            "Controls" = @{
                "Weight" = $true
                "Sealing" = $true
                "Labeling" = $true
            }
        }
        "Quality" = @{
            "Stations" = @{
                "Station1" = @{
                    "Metrics" = @("Defects", "Accuracy", "Calibration")
                    "Threshold" = 99
                    "Interval" = 120
                }
                "Station2" = @{
                    "Metrics" = @("Defects", "Accuracy", "Calibration")
                    "Threshold" = 99
                    "Interval" = 120
                }
            }
            "Controls" = @{
                "Inspection" = $true
                "Testing" = $true
                "Documentation" = $true
            }
        }
    } `
    -LogPath "C:\Logs\production_line.json"

# 监控制造设备
$monitor = Monitor-ManufacturingDevices -MonitorID "MONITOR001" `
    -DeviceTypes @("Robots", "CNC", "Conveyors") `
    -MonitorMode "Status" `
    -MonitorConfig @{
        "Robots" = @{
            "Devices" = @{
                "Robot1" = @{
                    "Metrics" = @("Position", "Speed", "Torque")
                    "Threshold" = 95
                    "Interval" = 30
                }
                "Robot2" = @{
                    "Metrics" = @("Position", "Speed", "Torque")
                    "Threshold" = 95
                    "Interval" = 30
                }
            }
            "Alerts" = @{
                "Critical" = $true
                "Warning" = $true
                "Notification" = "Email"
            }
        }
        "CNC" = @{
            "Devices" = @{
                "CNC1" = @{
                    "Metrics" = @("Accuracy", "Speed", "ToolLife")
                    "Threshold" = 95
                    "Interval" = 60
                }
                "CNC2" = @{
                    "Metrics" = @("Accuracy", "Speed", "ToolLife")
                    "Threshold" = 95
                    "Interval" = 60
                }
            }
            "Alerts" = @{
                "Critical" = $true
                "Warning" = $true
                "Notification" = "SMS"
            }
        }
        "Conveyors" = @{
            "Devices" = @{
                "Conveyor1" = @{
                    "Metrics" = @("Speed", "Load", "Alignment")
                    "Threshold" = 90
                    "Interval" = 30
                }
                "Conveyor2" = @{
                    "Metrics" = @("Speed", "Load", "Alignment")
                    "Threshold" = 90
                    "Interval" = 30
                }
            }
            "Alerts" = @{
                "Critical" = $true
                "Warning" = $true
                "Notification" = "Email"
            }
        }
    } `
    -ReportPath "C:\Reports\device_monitoring.json"

# 管理库存
$manager = Manage-Inventory -InventoryID "INV001" `
    -InventoryTypes @("Raw", "WorkInProgress", "Finished") `
    -OperationMode "Track" `
    -InventoryConfig @{
        "Raw" = @{
            "Items" = @{
                "Material1" = @{
                    "Thresholds" = @{
                        "Min" = 1000
                        "Max" = 5000
                    }
                    "Tracking" = @{
                        "Location" = $true
                        "Lot" = $true
                        "Expiry" = $true
                    }
                }
                "Material2" = @{
                    "Thresholds" = @{
                        "Min" = 500
                        "Max" = 2000
                    }
                    "Tracking" = @{
                        "Location" = $true
                        "Lot" = $true
                        "Expiry" = $true
                    }
                }
            }
            "Controls" = @{
                "Reorder" = $true
                "Quality" = $true
                "Storage" = $true
            }
        }
        "WorkInProgress" = @{
            "Items" = @{
                "Product1" = @{
                    "Thresholds" = @{
                        "Min" = 100
                        "Max" = 500
                    }
                    "Tracking" = @{
                        "Stage" = $true
                        "Time" = $true
                        "Quality" = $true
                    }
                }
                "Product2" = @{
                    "Thresholds" = @{
                        "Min" = 50
                        "Max" = 200
                    }
                    "Tracking" = @{
                        "Stage" = $true
                        "Time" = $true
                        "Quality" = $true
                    }
                }
            }
            "Controls" = @{
                "Flow" = $true
                "Quality" = $true
                "Efficiency" = $true
            }
        }
        "Finished" = @{
            "Items" = @{
                "Product1" = @{
                    "Thresholds" = @{
                        "Min" = 200
                        "Max" = 1000
                    }
                    "Tracking" = @{
                        "Location" = $true
                        "Lot" = $true
                        "Quality" = $true
                    }
                }
                "Product2" = @{
                    "Thresholds" = @{
                        "Min" = 100
                        "Max" = 500
                    }
                    "Tracking" = @{
                        "Location" = $true
                        "Lot" = $true
                        "Quality" = $true
                    }
                }
            }
            "Controls" = @{
                "Storage" = $true
                "Quality" = $true
                "Distribution" = $true
            }
        }
    } `
    -ReportPath "C:\Reports\inventory_management.json"

最佳实践

  1. 实施生产线管理
  2. 监控制造设备
  3. 控制库存水平
  4. 保持详细的生产记录
  5. 定期进行设备维护
  6. 实施质量控制
  7. 建立应急响应机制
  8. 保持系统文档更新
发表更新powershell / devops2 分钟读完 (大约281个字)

PowerShell 技能连载 - Docker容器生命周期管理

在容器化技术广泛应用的今天，Docker容器的日常管理成为运维工作的重要环节。本文将演示如何通过PowerShell实现容器生命周期的自动化管理，包括创建、启停和监控等操作。

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function Manage-DockerContainer {
    param(
        [ValidateSet('Create','Start','Stop','Remove')]
        [string]$Action,
        [string]$ImageName,
        [string]$ContainerName
    )

    try {
        switch ($Action) {
            'Create' {
                docker run -d --name $ContainerName $ImageName
            }
            'Start' {
                docker start $ContainerName
            }
            'Stop' {
                docker stop $ContainerName
            }
            'Remove' {
                docker rm -f $ContainerName
            }
        }

        # 获取容器状态
        $status = docker inspect -f '{{.State.Status}}' $ContainerName
        Write-Host "$($Action)操作完成，当前状态：$status"
    }
    catch {
        Write-Error "$Action操作失败：$_"
    }
}

实现原理分析：

  1. 通过Docker命令行接口实现容器操作
  2. 参数验证机制确保操作类型合法性
  3. 支持创建/启动/停止/删除四大核心操作
  4. 操作完成后自动获取并返回容器实时状态
  5. 异常处理机制捕获常见容器操作错误

该脚本将容器管理操作封装为可重复使用的函数，特别适合需要批量管理多个容器实例的微服务架构场景。

发表更新powershell / basic1 分钟读完 (大约180个字)

PowerShell正则表达式入门精要

基础匹配模式

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# 邮箱验证正则
$emailPattern = '^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$'
'test@example.com' -match $emailPattern  # 返回True

# 提取电话号码
$text = '联系电话：010-12345678 或 13800138000'
$text -match '\d{3,4}-\d{7,8}'
$matches[0]  # 输出010-12345678

正则表达式元字符

字符 功能描述 示例
. 匹配任意字符 a.c → abc
\d 匹配数字 \d{3} → 123
\w 匹配字母数字下划线 \w+ → abc123
^ 匹配行首 ^Start
$ 匹配行尾 end$

替换操作示例

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# 日期格式转换
'2024-04-07' -replace '(\d{4})-(\d{2})-(\d{2})','$3/$2/$1'
# 输出07/04/2024

# 清理多余空格
'PowerShell  正则  教程' -replace '\s+',' '
# 输出PowerShell 正则 教程

性能优化建议

  1. 预编译常用正则表达式
  2. 避免贪婪匹配引发性能问题
  3. 使用非捕获组(?:)减少内存开销
发表更新powershell / tip4 分钟读完 (大约535个字)

PowerShell 技能连载 - PDF 处理技巧

在 PowerShell 中处理 PDF 文件是一项常见任务，本文将介绍一些实用的 PDF 处理技巧。

首先，让我们看看基本的 PDF 操作：

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# 创建 PDF 信息获取函数
function Get-PDFInfo {
    param(
        [string]$PDFPath
    )
    
    try {
        # 使用 iTextSharp 获取 PDF 信息
        Add-Type -Path "itextsharp.dll"
        $reader = [iTextSharp.text.pdf.PdfReader]::new($PDFPath)
        
        $info = [PSCustomObject]@{
            FileName = Split-Path $PDFPath -Leaf
            PageCount = $reader.NumberOfPages
            FileSize = (Get-Item $PDFPath).Length
            IsEncrypted = $reader.IsEncrypted()
            Metadata = $reader.Info
        }
        
        $reader.Close()
        return $info
    }
    catch {
        Write-Host "获取 PDF 信息失败：$_"
    }
}

PDF 合并：

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# 创建 PDF 合并函数
function Merge-PDFFiles {
    param(
        [string[]]$InputFiles,
        [string]$OutputPath
    )
    
    try {
        Add-Type -Path "itextsharp.dll"
        $document = [iTextSharp.text.Document]::new()
        $writer = [iTextSharp.text.pdf.PdfCopy]::new($document, [System.IO.FileStream]::new($OutputPath, [System.IO.FileMode]::Create))
        
        $document.Open()
        
        foreach ($file in $InputFiles) {
            $reader = [iTextSharp.text.pdf.PdfReader]::new($file)
            for ($i = 1; $i -le $reader.NumberOfPages; $i++) {
                $writer.AddPage($writer.GetImportedPage($reader, $i))
            }
            $reader.Close()
        }
        
        $document.Close()
        $writer.Close()
        
        Write-Host "PDF 合并完成：$OutputPath"
    }
    catch {
        Write-Host "合并失败：$_"
    }
}

PDF 分割：

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# 创建 PDF 分割函数
function Split-PDF {
    param(
        [string]$InputPath,
        [string]$OutputFolder,
        [int[]]$PageRanges
    )
    
    try {
        Add-Type -Path "itextsharp.dll"
        $reader = [iTextSharp.text.pdf.PdfReader]::new($InputPath)
        
        for ($i = 0; $i -lt $PageRanges.Count; $i += 2) {
            $startPage = $PageRanges[$i]
            $endPage = if ($i + 1 -lt $PageRanges.Count) { $PageRanges[$i + 1] } else { $reader.NumberOfPages }
            
            $outputPath = Join-Path $OutputFolder "split_$($startPage)_$($endPage).pdf"
            $document = [iTextSharp.text.Document]::new()
            $writer = [iTextSharp.text.pdf.PdfCopy]::new($document, [System.IO.FileStream]::new($outputPath, [System.IO.FileMode]::Create))
            
            $document.Open()
            
            for ($page = $startPage; $page -le $endPage; $page++) {
                $writer.AddPage($writer.GetImportedPage($reader, $page))
            }
            
            $document.Close()
            $writer.Close()
        }
        
        $reader.Close()
        Write-Host "PDF 分割完成"
    }
    catch {
        Write-Host "分割失败：$_"
    }
}

PDF 加密：

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# 创建 PDF 加密函数
function Protect-PDF {
    param(
        [string]$InputPath,
        [string]$OutputPath,
        [string]$UserPassword,
        [string]$OwnerPassword
    )
    
    try {
        Add-Type -Path "itextsharp.dll"
        $reader = [iTextSharp.text.pdf.PdfReader]::new($InputPath)
        $stamper = [iTextSharp.text.pdf.PdfStamper]::new($reader, [System.IO.FileStream]::new($OutputPath, [System.IO.FileMode]::Create))
        
        # 设置加密
        $stamper.SetEncryption(
            [System.Text.Encoding]::UTF8.GetBytes($UserPassword),
            [System.Text.Encoding]::UTF8.GetBytes($OwnerPassword),
            [iTextSharp.text.pdf.PdfWriter]::ALLOW_PRINTING -bor
            [iTextSharp.text.pdf.PdfWriter]::ALLOW_COPY -bor
            [iTextSharp.text.pdf.PdfWriter]::ALLOW_FILL_IN -bor
            [iTextSharp.text.pdf.PdfWriter]::ALLOW_SCREENREADERS,
            [iTextSharp.text.pdf.PdfWriter]::ENCRYPTION_AES_128
        )
        
        $stamper.Close()
        $reader.Close()
        
        Write-Host "PDF 加密完成：$OutputPath"
    }
    catch {
        Write-Host "加密失败：$_"
    }
}

这些技巧将帮助您更有效地处理 PDF 文件。记住，在处理 PDF 时，始终要注意文件的安全性和完整性。同时，建议在处理大型 PDF 文件时使用流式处理方式，以提高性能。

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