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RE: how to detect if Windows or Linux is running?


H. S. wrote:
> Christopher Faylor wrote:
>> On Thu, Dec 01, 2005 at 05:07:15PM -0500, H. S. wrote:
>> 
>>> Hi,
>>> 
>>> I have installed Cygwin on a Windows XP computer to get rsync and
>>> ssh running so that I can backup my important data on a Linux
>>> computer on my home LAN. The idea is to use rsync to make rolling
>>> backups of my Windows data automatically, say, once or twice a day
>>> and to retain last N backups (N most probably going to be 10~20).
>>> 
>>> But the problem I had not foreseen is that I dual boot this Windows
>>> machine between Windows XP and Debian. How should I gracefully let
>>> the rsync server know if this computer is running Linux or XP?
>>> 
>>> I know that if the computer is running Linux, the rsync server will
>>> never find /cygdrive/... folders and will just quite with an error.
>>> But this is not 'clean', it will result in mails to the rsync
>>> server root about the error. 
>>> 
>>> Suggestions?
>> 
>> 
>> Why not just use mount to mount things similarly on the cygwin side
>> and the linux side? 
>> 
>> cgf
>> 
> 
> Even if I do that on the machine to be backed up, I still need to
> know what OS is running. This is for the situation in which I want to
> maintain different backups of Linux and of Windows data. To do this,
> rsync must now what it is backing up so that it does not overwrite
> previous backups of one OS with the new ones of the other.    
> 
> Or I misunderstood your post.
> 
> ->HS

Perhaps you could look for environmental variables that Windows sets but
Linux doesn't.  COMSPEC, windir, SystemDrive, SystemRoot, ProgramFiles,
CommonProgramFiles

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