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chapter_8.ps1
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chapter_8.ps1
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#region DRY: Don’t Repeat Yourself
if (-not (Get-WindowsFeature -Name 'Web-Server').Installed) {
Install-WindowsFeature -Name 'Web-Server'
}
if (-not (Get-WindowsFeature -Name 'Web-Server').Installed) {
Install-WindowsFeature -Name 'Web-Server'
}
if (-not (Get-WindowsFeature -Name 'SNMP-Server').Installed) {
Install-WindowsFeature -Name 'Web-Server'
}
if (-not (Get-WindowsFeature -Name 'SNMP-Services').Installed) {
Install-WindowsFeature -Name 'Web-Server'
}
if (-not (Get-WindowsFeature -Name 'Backup-Features').Installed) {
Install-WindowsFeature -Name 'Web-Server'
}
if (-not (Get-WindowsFeature -Name 'XPS-Viewer').Installed) {
Install-WindowsFeature -Name 'Web-Server'
}
if (-not (Get-WindowsFeature -Name 'Wireless-Networking').Installed) {
Install-WindowsFeature -Name 'Web-Server'
}
$featureNames = @(
'Web-Server'
'SNMP-Server'
'SNMP-Services'
'Backup-Features'
'XPS-Viewer'
'Wireless-Networking'
)
foreach ($name in $featureNames) {
if (-not (Get-WindowsFeature -Name $name).Installed) {
Install-WindowsFeature -Name $name
}
}
#endregion
#region Don’t Store Configuration Items in Code
@{
'WindowsFeatures' = @(
'Web-Server'
'SNMP-Server'
'SNMP-Services'
'Backup-Features'
'XPS-Viewer'
'Wireless-Networking'
)
}
$configuration = Import-PowerShellDataFile "$PSScriptRoot\ScriptConfiguration.psd1"
foreach ($name in $configuration.WindowsFeatures) {
if (-not (Get-WindowsFeature -Name $name).Installed) {
Install-WindowsFeature -Name $name
}
}
#endregion
#region Always Remove Dead Code
[CmdletBinding()]
param(
[Parameter(Mandatory)]
[string]$ComputerName,
[Parameter()]
[pscredential]$Credential
)
$somelostForgottenVariable = 'bar'
$service = Get-Service -Name 'foo' -ComputerName $ComputerName
if ($service.Status -eq 'Running') {
Write-Host 'Do something here'
} elseif ($someLostForgottenVariable -eq 'baz') {
Write-Host 'do something else here'
}
#endregion