AvailableMemory returns the amount of current available free memory.

File returns the data size of the given file and the number of lines.

MustAvailableMemory is the same as AvailableMemory but panics if it fails to get the memory information.

New returns a new InBytes instance from the given input.

GiB = 1024 * MiB.

KiB = 1024 Bytes.

MiB = 1024 * KiB.

PiB = 1024 * TiB.

TiB = 1024 * GiB.

memoryGet is a copy of memory.Get function to ease testing.

OsOpen is a copy of os.Open to ease testing.

InBytes represents a size in bytes.