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Message-ID: <42FA4EC2.3000504@alltel.net>
Date: Wed, 10 Aug 2005 14:00:18 -0500
From: Ken Dibble <kdibble AT alltel DOT net>
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To: cygwin AT cygwin DOT com
Subject: Re: Programatically finding value of "cygdrive" prefix
References: <42FA4604 DOT 8000507 AT tlinx DOT org> <20050810183616 DOT GA5892 AT trixie DOT casa DOT cgf DOT cx> <20050810184119 DOT GA6155 AT trixie DOT casa DOT cgf DOT cx>
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Christopher Faylor wrote:

>On Wed, Aug 10, 2005 at 02:36:16PM -0400, Christopher Faylor wrote:
>  
>
>>On Wed, Aug 10, 2005 at 11:23:00AM -0700, Linda W wrote:
>>    
>>
>>>Is there a way to find out in a bash script the cygdrive prefix?
>>>I thought something simple like
>>>  mount -p|tail -1|cut -f1
>>>but that incorrectly assumed the fields were tab delimited.
>>>Since there can be spaces in the cygdrive prefix, I can't
>>>use space a delimiter, example:
>>># mount -p
>>>Prefix              Type         Flags
>>>/cyg drive posix path  system       binmode
>>>----
>>>      
>>>
>>There may be a simpler way to do it, but this seems to work:
>>
>>mount -p | sed -n '2s/\([^ ]\)  *[^ ][^ ]*  *[^ ][^ ]*$/\1/p'
>>    
>>
>
>This is shorter:
>
>mount -p | sed -nr '2s/([^ ]) +\S+ +\S+$/\1/p'
>
>cgf
>
>
>  
>
Or you can do it the long, slow wasteful way, which us dullards are required
to use, so we can figure out why it broke yet again.

#!/bin/bash
let c=0;
# get the number of fields
for i in `mount -p | tail -1`; do let c=$c+1; done

# if number of fields is greater than 3 because mount point has a space, 
add them
CUT_FIELDS="--fields=1"
let i=3;
while [ $i -lt $c ]
do
CUT_FIELDS=$CUT_FIELDS,$i
let i=$i+1
done

# get the fields
mount -p | tail -1 | /usr/bin/cut --delimiter=" " $CUT_FIELDS



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