how to exclude external disk/usb from fdisk command

vjlxmi · 07-01-2015, 08:08 AM

fdisk -l command displays all the hard disks in the system.. but I want to exclude the external hard disks and store only the internal hard disk's value in a variable.. Is there a command to do so??

Thankyou

rtmistler · 07-01-2015, 08:50 AM

Just run fdisk on the hard disk you want to see information for, like if it is /dev/sdb, then run:

Code:

fdisk -l /dev/sdb

vjlxmi · 07-02-2015, 02:45 AM

yeah.. but that is possible only if I know that sdb is an external or internal disk.. Is there a general way to know/identify which disks are internal and which are external??

pan64 · 07-02-2015, 02:49 AM

the only way is I think to know which one is built into it - and all the others are external. So you need a list.

syg00 · 07-02-2015, 03:18 AM

Code:

cat /sys/block/sdb/removable

vjlxmi · 07-02-2015, 04:18 AM

Thank you..

The command gives out value "1" if the disk is external, and value "0" if the disk is internal..