It sounds like you're asking about a feature — likely a command or tool for installing fonts programmatically or via command line.
# Install a font manually sudo cp MyFont.ttf /usr/share/fonts/truetype/ sudo fc-cache -fv fontinstall() { sudo cp "$1" /usr/share/fonts/truetype/ sudo fc-cache -fv } 2. Windows (PowerShell) # Install font for current user $font = "C:\path\to\font.ttf" $destination = "$env:LOCALAPPDATA\Microsoft\Windows\Fonts" Copy-Item $font $destination Add registry entry Add-Type -AssemblyName System.Drawing $fontName = [System.Drawing.FontFamily]::new($font).Name New-Item -Path "HKCU:\Software\Microsoft\Windows NT\CurrentVersion\Fonts" ` -Name $fontName -Value "font.ttf" 3. macOS (Terminal) # Install font for all users sudo cp MyFont.ttf /Library/Fonts/ For current user only cp MyFont.ttf ~/Library/Fonts/ 4. Node.js / JavaScript (package idea) If you meant a hypothetical npm package: fontinstall
Since you didn't specify an OS or environment, here’s how fontinstall -like functionality works in different contexts: There's no standard fontinstall command, but you can create an alias or script: It sounds like you're asking about a feature