$ curl cheat.sh/
# qemu-img
# Tool for Quick Emulator Virtual HDD image creation and manipulation.
# More information: <https://qemu.readthedocs.io/en/latest/tools/qemu-img.html>.

# Create disk image with a specific size (in gigabytes):
qemu-img create image_name.img gigabytesG

# Show information about a disk image:
qemu-img info image_name.img

# Increase or decrease image size:
qemu-img resize image_name.img gigabytesG

# Dump the allocation state of every sector of the specified disk image:
qemu-img map image_name.img

# Convert a VMware .vmdk disk image to a KVM .qcow2 disk image:
qemu-img convert -f vmdk -O qcow2 path/to/file/foo.vmdk path/to/file/foo.qcow2

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