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$array = 1..10
foreach ($a in $array) {Write-output $a}
foreach ($a in $array) {
Write-output $a
}
$sum = 0
foreach ($a in $array) {
Write-output $a
$sum = $sum + $a
}
Write-Output "The sum of `$array is $sum."
Get-ChildItem | ForEach-Object {
$_.name
$_.CreationTime
}
Get-ChildItem -Path ~\Documents\CST1861\Week\14 | ForEach-Object {
Write-Output "$($_.name) was created on $($_.CreationTime)"
}
$array | ForEach-Object {
Write-Output $_
}
$n=1
While ($n -le 10){Write-Output $n; $n++ }
$n=1
While ($n -le 10){
Write-Output $n
$n++
}
$date = get-date
do {
Write-Output "Checking if the month is December"
$date = $date.AddMonths(1)
} while ($date.Month -ne 12 )
$date = get-date
$date = $date.AddMonths(1)
$date
do {
Write-Output "Checking if the month is December"
$date = $date.AddMonths(1)
} while ($date.Month -ne 12 )
$n=1
do {
Write-Output $n; $n++
} while ($n -le 10)
$items = Get-ChildItem -Path ~\Documents\CST1861\Week\13
foreach ($i in $items){Write-Output "The character length of $i is "($i).Length}
start-process notepad
$Process = "notepad"
do {
Write-Host "$Process is open"
} while ((get-process).name -contains "notepad")
The Big Book of PowerShell Error Handling
get-help about_automatic_variables > about_automatic_variables.txt
Get-Service -Name Foo,BITS,Nobody,WinRM -ErrorAction Continue
Get-Service -Name Foo,BITS,Nobody,WinRM -ErrorAction Stop
Get-Service -Name BITS,Foo,Nobody,WinRM -ErrorAction Stop
Get-Service -Name BITS,Foo,Nobody,WinRM -ErrorAction SilentlyContinue
$computer = 'Srv01'
Write-Verbose "Connecting to $computer"
$session = New-PSSession -ComputerName $computer -ErrorAction Stop
$computer = 'DESKTOP-46AVB2C'
$computers = 'localhost','Srv01','ooga'
foreach ($Computer in $computers) {
Write-Verbose "Connecting to $computer"
$session = New-PSSession -ComputerName $Computer -ErrorAction Stop
}
$session = New-PSSession -ComputerName $computers -ErrorVariable +a
try { blahfoo }
catch { Write-Warning "Warning: An error occurred." }
$a = ''
try {
$session = New-PSSession -ComputerName $computer -ErrorVariable +a
}
catch { Write-Warning "Warning: An error occurred."; Write-Output $a }
$cmderrors = ''
$computers | ForEach-Object {
try {
Write-Output $_
$session = New-PSSession -ComputerName $_ -ErrorAction SilentlyContinue -ErrorVariable +cmderrors
}
catch { Write-Warning "Warning: An error occurred, look at `$cmderrors for a list."; }
}
try {
Write-Output $_
$session = New-PSSession -ComputerName $_ -ErrorAction SilentlyContinue -ErrorVariable +cmderrors
}
catch { Write-Warning "Warning: An error occurred, look at `$cmderrors for a list."; }
$cmderrors = ''
$session = New-PSSession -ComputerName $computers -ErrorAction SilentlyContinue -ErrorVariable +cmderrors
if ( $cmderrors -ne '' )
{
Write-Warning "Warning: An error occurred, look at `$cmderrors for a list.";
}
try { $session = New-PSSession -ComputerName $computer }
catch { Write-Warning "Warning: An error occurred." }
Function Get-PCUpTime {
param (
[string[]]$ComputerName = 'localhost'
)
try {
foreach ($computer in $computerName) {
If ($computer -eq "localhost") {
Get-Uptime
}
Else { Invoke-command -ComputerName $computer -ScriptBlock { Get-Uptime } -ErrorAction Stop}
}
}
catch {
Write-Error "Cannot connect To $computer"
}
}