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Linux - Specify From Address With Mail Command

I struggled a bit with figuring out how to specify the from email address when sending mail on the Linux command line.  In short, you need to use the -r option.  For example:

echo "Enter your message here.  Thank you." | mail -s "Enter your subject here" -r This email address is being protected from spambots. You need JavaScript enabled to view it. This email address is being protected from spambots. You need JavaScript enabled to view it.

Windows - Disable Startup Recovery

If a colleague's PC crashes, Windows will restart into start-up recovery.  The problem here is that start-up recovery often makes an even bigger mess of the computer by removing it from AD.  These commands disable Windows start-up recovery.  Use at your own risk.

bcdedit /set {default} recoveryenabled No
bcdedit /set {default} bootstatuspolicy ignoreallfailures

Windows - Turn Off Internet Explorer PDF Download Confirmation

Yes, I know it's a security feature, but it's very frustrating for my colleagues that constantly download PDFs via Internet Explorer, confirming each and every file download individually.  This reg add command will disable that file download confirmation window.  Use this at your own risk as it is disabling a security feature.

REG ADD HKCU\Software\Microsoft\Windows\Shell\AttachmentExecute\{0002DF01-0000-0000-C000-000000000046} /v AcroPDF.PDF.1 /t REG_DWORD /d 00000000 /f

Windows - Install Fonts Via Command Line

I found this awesome Windows powershell script that allows you to install fonts via the command line.  This is very convenient for mass deployment.

$ssfFonts = 0x14
$fontSourceFolder = "\\PATH\TO\FONTS"
$Shell = New-Object -ComObject Shell.Application
$SystemFontsFolder = $Shell.Namespace($ssfFonts)
$FontFiles = Get-ChildItem $fontSourceFolder
$SystemFontsPath = $SystemFontsFolder.Self.Path
$rebootFlag = $false

foreach($FontFile in $FontFiles) {
    # $FontFile will be copied to this path:
    $targetPath = Join-Path $SystemFontsPath $FontFile.Name
    # So, see if target exists...
    if(Test-Path $targetPath){
        # font file with the same name already there.
        # delete and replace.
        $rebootFlag = $true
        Remove-Item $targetPath -Force
        Copy-Item $FontFile.FullName $targetPath -Force
    }else{
        #install the font.
        $SystemFontsFolder.CopyHere($FontFile.fullname)
    }
}

#Follow-up message
if($rebootFlag){
    Write-Host "At least one existing font overwritten. A reboot may be necessary."
}