gptfdisk

Text-mode partitioning tools for GUID Partition Table (GPT) disks

brewmacoslinux

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Text-mode partitioning tools

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Interactively partition a disk using gdisk$ sudo gdisk /dev/sda

Display partition table of a disk$ sudo sgdisk -p /dev/sda

Create a new partition using sgdisk non-interactively$ sudo sgdisk -n 0:0:+10G /dev/sda