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Full Discussion: Help about parse the variable
Top Forums Shell Programming and Scripting Help about parse the variable Post 302745419 by yanglei_fage on Monday 17th of December 2012 09:05:44 AM
Old 12-17-2012
Quote:
Originally Posted by Scott
Oh dear, I completely didn't see that you were running it using "$QEMU_CMD", on the last line there.

Is there any reason why you just cant run it directly without the variable. Or run it using eval $QEMU_CMD.
because I want to echo $QEMU_CMD
Aha it works with your cmd

I don't know why it doesn't work if I use below cmd, it will get that error too

Code:
QEMU_CMD=$(qemu-system-x86_64 -smp 2 -m 512 $QEMU_PARAMETER -hda $GUEST_IMAGE  -kernel $GUEST_KERNEL -append \"root=/dev/hda rw console=ttyS0,115200 ip=$IP_PARAMETER \" -nographic)

"
 

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LEARN ABOUT REDHAT

hd

HD(4)							     Linux Programmer's Manual							     HD(4)

NAME

       hd - MFM/IDE hard disk devices

DESCRIPTION

       The  hd*  devices  are block devices to access MFM/IDE hard disk drives in raw mode.  The master drive on the primary IDE controller (major
       device number 3) is hda; the slave drive is hdb.  The master drive of the second controller (major device number 22) is hdc and	the  slave
       hdd.

       General	IDE block device names have the form hdX, or hdXP, where X is a letter denoting the physical drive, and P is a number denoting the
       partition on that physical drive.  The first form, hdX, is used to address the whole drive.  Partition numbers are assigned  in	the  order
       the  partitions	are  discovered, and only non-empty, non-extended partitions get a number. However, partition numbers 1-4 are given to the
       four partitions described in the MBR (the `primary' partitions), regardless of whether they are unused or extended.  Thus, the first  logi-
       cal  partition  will be hdX5.  Both DOS-type partitioning and BSD-disklabel partitioning are supported.	You can have at most 63 partitions
       on an IDE disk.

       For example, /dev/hda refers to all of the first IDE drive in the system; and /dev/hdb3 refers to the third DOS `primary' partition on  the
       second one.

       They are typically created by:

	      mknod -m 660 /dev/hda b 3 0
	      mknod -m 660 /dev/hda1 b 3 1
	      mknod -m 660 /dev/hda2 b 3 2
	      ...
	      mknod -m 660 /dev/hda8 b 3 8
	      mknod -m 660 /dev/hdb b 3 64
	      mknod -m 660 /dev/hdb1 b 3 65
	      mknod -m 660 /dev/hdb2 b 3 66
	      ...
	      mknod -m 660 /dev/hdb8 b 3 72
	      chown root:disk /dev/hd*

FILES

       /dev/hd*

SEE ALSO

       mknod(1), chown(1), mount(8), sd(4)

Linux								    1992-12-17								     HD(4)
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