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Full Discussion: Strange results from FDISK?????
Top Forums Shell Programming and Scripting Strange results from FDISK????? Post 302225900 by alirezan on Sunday 17th of August 2008 04:21:53 PM
Old 08-17-2008
Strange results from FDISK?????
Hi all,

I am writing script that returns the size of each disk or partition when called. I am using FDISK -l and parsing the results to get the result I want. When I execute fdisk -l it shows correct results, BUT when I execute the same thing with results to be put in a variable, I get strange results:

Quote:
[root@APPSERVER programs]# fdisk -l 2>/dev/null | grep /dev/hda1
/dev/hda1 * 1 2709 20480008+ 7 HPFS/NTFS
Quote:
[root@APPSERVER programs]# result=`fdisk -l 2>/dev/null | grep /dev/hda1`
[root@APPSERVER programs]# echo $result
/dev/hda1 duplicate linux Microsoft Word - This week..pdf partition redundancy week6.pdf windows 1 2709 20480008+ 7 HPFS/NTFS
[root@APPSERVER programs]#
When I want the output to be put in $result variable, fdisk -l returns the files in the folder as well. Another example: When I execute from /:

Quote:
[root@APPSERVER /]# result=`fdisk -l 2>/dev/null | grep /dev/hda1`
[root@APPSERVER /]# echo $result
/dev/hda1 backup backups bin boot dev dhcpcd etc extra home initrd lib lost+found media mnt opt partition proc root sbin srv sys tmp usr var 1 2709 20480008+ 7 HPFS/NTFS
Can anybody tell me why this thing happens? I'm running mandriva 2008.1 by the way.

Thanks
 

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LEARN ABOUT DEBIAN

pvresize

PVRESIZE(8)						      System Manager's Manual						       PVRESIZE(8)

NAME

       pvresize - resize a disk or partition in use by LVM2

SYNOPSIS

       pvresize [-d|--debug] [-h|--help] [-t|--test] [-v|--verbose] [--version] [--setphysicalvolumesize size] PhysicalVolume [PhysicalVolume...]

DESCRIPTION

       pvresize resizes PhysicalVolume which may already be in a volume group and have active logical volumes allocated on it.

OPTIONS

       See lvm(8) for common options.

       --setphysicalvolumesize size
	      Overrides the automatically-detected size of the PV.  Use with care, or prior to reducing the physical size of the device.

EXAMPLES

       Expand the PV on /dev/sda1 after enlarging the partition with fdisk:

       pvresize /dev/sda1

       Shrink the PV on /dev/sda1 prior to shrinking the partition with fdisk (ensure that the PV size is appropriate for your intended new parti-
       tion size):

       pvresize --setphysicalvolumesize 40G /dev/sda1

RESTRICTIONS

       pvresize will refuse to shrink PhysicalVolume if it has allocated extents after where its new end would be. In the future, it should  relo-
       cate these elsewhere in the volume group if there is sufficient free space, like pvmove does.

       pvresize won't currently work correctly on LVM1 volumes or PVs with extra metadata areas.

SEE ALSO

       lvm(8), pvmove(8), lvresize(8), fdisk(8)

Sistina Software UK					 LVM TOOLS 2.02.95(2) (2012-03-06)					       PVRESIZE(8)
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