Yvon,
It took a bit of digging through hex codes as Stestagg suggested, but I
came up with this command that seems to work:
diskutil erasevolume HFS+ 'ramdisk' (hdiutil attach -nomount ram://204800 |
tr -d '[:space:]')
tr -d '[:space:]' removes the 0x09 TAB characters as well as the string of
0x20 spaces. I believe the problem was the tab characters.
Robert
On Mon, Feb 24, 2014 at 11:54 AM, Yvon Thoraval <yvon.thora...@gmail.com>wrote:
> may be, because the output of :
> hdiutil attach -nomount ram://204800
>
> isn't (for example) :
> /dev/disk4
>
> but rather (without the quotes) :
> "/dev/disk4
> "
>
> that's to say with tens of spaces after /dev/disk4
>
> may be i shoud trim that ?
>
>
>
> 2014-02-24 10:01 GMT+01:00 Stestagg <stest...@gmail.com>:
>
> Could that be some non visible characters in the output? Bash and fish
>> handle ifs differently.
>>
>> Could you pipe the output of hdiutil to hexdump to see?
>>
>> Steve
>> On 24 Feb 2014 08:04, "Yvon Thoraval" <yvon.thora...@gmail.com> wrote:
>>
>>> if i decompose the line in two (under SHELL fish):
>>>
>>> >$ hdiutil attach -nomount ram://204800
>>>
>>> /dev/disk4
>>>
>>> $ diskutil erasevolume HFS+ "RamDisk" /dev/disk4
>>>
>>> Started erase on disk4
>>>
>>> Unmounting disk
>>>
>>> Erasing
>>>
>>> Initialized /dev/rdisk4 as a 100 MB case-insensitive HFS Plus volume
>>>
>>> Mounting disk
>>>
>>> Finished erase on disk4 RamDisk
>>>
>>>
>>> it's OK then i was hopping doing :
>>>
>>> $ set monVolume (hdiutil attach -nomount ram://204800)
>>>
>>> >$ diskutil erasevolume HFS+ "RamDisk" $monVolume
>>>
>>> Unable to find disk for /dev/disk5
>>>
>>>
>>> was working correctly, but not.
>>>
>>>
>>> strange the "Unable to find disk for /dev/disk5" because :
>>>
>>> $ lal /dev/disk*
>>>
>>> brw-r----- 1 root operator 1, 0 20 fév 15:31 /dev/disk0
>>>
>>> brw-r----- 1 root operator 1, 1 20 fév 15:31 /dev/disk0s1
>>>
>>> brw-r----- 1 root operator 1, 2 20 fév 15:31 /dev/disk0s2
>>>
>>> brw-r----- 1 root operator 1, 3 20 fév 15:31 /dev/disk0s3
>>>
>>> brw-r----- 1 root operator 1, 4 20 fév 15:31 /dev/disk1
>>>
>>> brw-r----- 1 root operator 1, 5 20 fév 15:31 /dev/disk1s1
>>>
>>> brw-r----- 1 root operator 1, 6 20 fév 15:31 /dev/disk1s2
>>>
>>> brw-r----- 1 root operator 1, 7 20 fév 15:31 /dev/disk2
>>>
>>> brw-r----- 1 root operator 1, 8 20 fév 15:31 /dev/disk2s1
>>>
>>> brw-r----- 1 root operator 1, 9 20 fév 15:31 /dev/disk2s2
>>>
>>> brw-r----- 1 root operator 1, 10 20 fév 15:31 /dev/disk2s3
>>>
>>> brw-r----- 1 yt staff 1, 11 24 fév 07:50 /dev/disk3
>>>
>>> brw-r----- 1 yt staff 1, 12 24 fév 08:52 /dev/disk4
>>>
>>> brw-r----- 1 yt staff 1, 13 24 fév 08:56 /dev/disk5
>>> <<<<<========
>>>
>>>
>>>
>>>
>>> 2014-02-24 7:52 GMT+01:00 Yvon Thoraval <yvon.thora...@gmail.com>:
>>>
>>>> unfortunately not ;-)
>>>>
>>>> .-[yt@iMac.local:~/Downloads][20:41:12]
>>>>
>>>>
>>>>
>>>>
>>>> '->$ diskutil erasevolume HFS+ "Ram Disk" (hdiutil attach -nomount
>>>> ram://204800)
>>>>
>>>> Unable to find disk for /dev/disk3
>>>>
>>>>
>>>> .-[yt@iMac.local:~/Downloads][07:50:54]
>>>>
>>>>
>>>>
>>>>
>>>> '->$
>>>>
>>>>
>>>> same result with parenthesis as back ticks...
>>>>
>>>>
>>>> 2014-02-24 7:49 GMT+01:00 Yvon Thoraval <yvon.thora...@gmail.com>:
>>>>
>>>> fine thanks!
>>>>>
>>>>>
>>>>> 2014-02-23 20:59 GMT+01:00 Robert Carpenter <rob...@robacarp.com>:
>>>>>
>>>>> Yvon,
>>>>>>
>>>>>> Backticks are indeed the problem. Simply swap them out for
>>>>>> parentheses and it should work as expected:
>>>>>>
>>>>>> diskutil erasevolume HFS+ "Ram Disk" (hdiutil attach -nomount
>>>>>> ram://204800)
>>>>>>
>>>>>> Robert
>>>>>>
>>>>>>
>>>>>> On Sun, Feb 23, 2014 at 10:34 AM, Yvon Thoraval <
>>>>>> yvon.thora...@gmail.com> wrote:
>>>>>>
>>>>>>> With shell fish i get :
>>>>>>>
>>>>>>> .-[yt@iMac.local:~/Downloads][18:23:13]
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> '->$ diskutil erasevolume HFS+ "Ram Disk" `hdiutil attach -nomount
>>>>>>> ram://204800`
>>>>>>>
>>>>>>> Unable to find disk for `hdiutil
>>>>>>>
>>>>>>> .-[yt@iMac.local:~/Downloads][18:32:34]
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> '->$
>>>>>>>
>>>>>>>
>>>>>>> Switching to sh works :
>>>>>>>
>>>>>>> .-[yt@iMac.local:~/Downloads][17:55:51]
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> '->$ sh
>>>>>>>
>>>>>>> sh-3.2$ diskutil erasevolume HFS+ "Ram Disk" `hdiutil attach
>>>>>>> -nomount ram://204800`
>>>>>>>
>>>>>>> Started erase on disk3
>>>>>>>
>>>>>>> Unmounting disk
>>>>>>>
>>>>>>> Erasing
>>>>>>>
>>>>>>> Initialized /dev/rdisk3 as a 100 MB case-insensitive HFS Plus volume
>>>>>>>
>>>>>>> Mounting disk
>>>>>>>
>>>>>>> Finished erase on disk3 Ram Disk
>>>>>>>
>>>>>>> sh-3.2$ exit
>>>>>>>
>>>>>>> exit
>>>>>>>
>>>>>>> .-[yt@iMac.local:~/Downloads][18:10:46]
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> '->$
>>>>>>>
>>>>>>>
>>>>>>> What should I avoid with fish ?
>>>>>>>
>>>>>>> th backticks "`" ???
>>>>>>>
>>>>>>> --
>>>>>>> Yvon@48.871651804,2.384858688
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> ------------------------------------------------------------------------------
>>>>>>> Managing the Performance of Cloud-Based Applications
>>>>>>> Take advantage of what the Cloud has to offer - Avoid Common
>>>>>>> Pitfalls.
>>>>>>> Read the Whitepaper.
>>>>>>>
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>>>>>>> _______________________________________________
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>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Yvon@48.871651804,2.384858688
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Yvon@48.871651804,2.384858688
>>>>
>>>>
>>>
>>>
>>> --
>>> Yvon@48.871651804,2.384858688
>>>
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Flow-based real-time traffic analytics software. Cisco certified tool.
>>> Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer
>>> Customize your own dashboards, set traffic alerts and generate reports.
>>> Network behavioral analysis & security monitoring. All-in-one tool.
>>>
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>>>
>>> _______________________________________________
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>>>
>>>
>
>
> --
> Yvon@48.871651804,2.384858688
>
>
------------------------------------------------------------------------------
Flow-based real-time traffic analytics software. Cisco certified tool.
Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer
Customize your own dashboards, set traffic alerts and generate reports.
Network behavioral analysis & security monitoring. All-in-one tool.
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