-size n[cwbkMG]
    File uses n units of space. The following suffixes can be used:
    'b'    for 512-byte blocks (this is the default if no suffix is used)
    'c'    for bytes
    'w'    for two-byte words
    'k'    for Kilobytes (units of 1024 bytes)
    'M'    for Megabytes (units of 1048576 bytes)
    'G'    for Gigabytes (units of 1073741824 bytes)