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12

How to convert Kilobytes to Megabytes or gigabytes through terminal?

rated 0 times [ 12] [ 0] / answers: 1 / hits: 46426 / 2 Years ago, sun, january 30, 2022, 4:01:37

I try to find the size of my disk, so i runned the below command

$ sudo fdisk -s /dev/sda

976762584

It shows like above. I think the size(976762584) of the disk is shown in kilobytes. How do i convert the value to megabytes or gigabytes through terminal for better understanding?

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urvedcaly

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4 Years ago

answered 2 Years ago tersle · Accepted Answer

The shell does fixed-width integer arithmetic with no check for overflow. So, when doing a calculation that might involve either large numbers or fractions, bc is a good choice. To get megabytes:

$ echo "scale=2; $(sudo fdisk -s /dev/sda6) / 1024" | bc

13641.75

To get gigabytes:

$ echo "scale=2; $(sudo fdisk -s /dev/sda6) / 1024^2" | bc

12.70

The assignment scale=2 tells bc to display two decimal places.