CODEWITHSUNDEEP
linuxbashshell
MeJ
MeJ

Reputation: 1108

HAL - UDISKS, human readable, convert bytes to gigabytes in bash script

First Question

I'm currently using HAL in a bash script to get the size of a specific device with following command.

HAL_SIZE=$(hal-get-property --udi $UDI --key storage.removable.media_size)

The result (e.g): 4110188544/

But how can I convert this value to human readable format like GB:

4 110 188 544 bytes = 3.82791138 gigabytes

Second Question

    for UDI in $(hal-find-by-property --key storage.bus --string usb)
do
    HAL_TMP=`hal-get-property --udi $UDI --key storage.removable.media_available`
    if [ "$HAL_TMP" = "true" ]; then
        HAL_DEV=$(hal-get-property --udi $UDI --key block.device)
        HAL_SIZE=$(hal-get-property --udi $UDI --key storage.removable.media_size)
        HAL_TYPE=$(hal-get-property --udi $UDI --key storage.drive_type)

Does anybody have some expirence with udisks, because HAL won't be longer supported on the most linux distribution, so I am thinking of to use udisks

How do I have to adapt the above mentioned commands but use udisks instead of hal

Thanks!

Upvotes: 0

Views: 2069

Answers (1)

elbeardmorez
elbeardmorez

Reputation: 590

an answer to q1:

>bytes="4110188544/"; echo $(echo "scale=3;${bytes%/*}/1024/1024/1024"|bc)GB
3.827GB

this strips the trailing forward slash and uses 'bc' to convert bytes to GB. modify the scale integer for accuracy

Upvotes: 1

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