$ curl cheat.sh/

# mkfs.ext4
# Creates an ext4 filesystem inside a partition.
# More information: <https://manned.org/mkfs.ext4>.

# Create an ext4 filesystem inside partition 1 on device b (`sdb1`):
sudo mkfs.ext4 /dev/sdb1

# Create an ext4 filesystem with a volume-label:
sudo mkfs.ext4 -L volume_label /dev/sdb1

$

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