Terminal will progress through erasing, copying files, and making the disk bootable. Once you see the message "Done.", your bootable USB is ready. Installing OS X El Capitan 10.11.6
/usr/bin/curl -L -o ~/Downloads/InstallMacOSXElCapitan.dmg http://updates-http.cdn-apple.com/2019/cert/061-39476-20191023-48f365d4-d3e9-44be-aa22-ee3430f8fa9a/InstallMacOSXElCapitan.dmg Mac Os X El Capitan 10.11.6 Installer Dmg Download
This package will install a file named into your Applications folder. Run that application to begin the installation process. Requirements for Installing El Capitan Terminal will progress through erasing, copying files, and
Format the drive as with a GUID Partition Map using Disk Utility. Name the USB drive ElCapInstaller during formatting. Terminal Method (Recommended) Connect your formatted USB drive to your Mac. Terminal will progress through erasing
You will need a USB drive named "MyVolume" (at least 8GB) and the installer app located in your Applications folder. Open Terminal and paste: