> You script worked for me on Ubuntu 10.04 with bash 4.1-2ubuntu3.
>
> - Bill

Hmmm - that's odd.  When I run it on my box I lose the leading spaces.

Debian Squeeze/Sid, bash 4.1.5(1)-release (x86_64-pc-linux-gnu)

I guess I need to take a looksee into the Ubuntu version and see if I can
figure out what they're doing...

Thanks anyway for your help.

Regards,
Ozz.

> On Tue, Nov 23, 2010 at 1:17 PM, <[email protected]> wrote:
>
>> Hi Guys.
>>
>> I have a text file where some lines contain leading spaces.
>> I need to modify the file with cat, sed and echo.
>> This is causing leading spaces to be lost.
>>
>> Here is a sample of the relevant section of the text file (it is part of
>> the config file for a xen guest):
>> =============
>> root        = '/dev/xvda2 ro'
>> disk        = [
>>                  'phy:/dev/volgrp/www3-swap,xvda1,w',
>>                  'phy:/dev/volgrp/www3-disk,xvda2,w',
>>              ]
>> =============
>>
>>
>> and here is the relevant section of the script I currently have:
>> =============
>> #!/bin/bash
>> SUCCESS=0                     # Value used to test for goodness.
>> cat /home/ozz/Scripts/temp/www3.cfg |
>> while IFS='' read -r line
>> do
>>        echo "$line" | grep -q "xvda2,w"
>>        if [ $? -eq $SUCCESS ]
>>        then
>>                echo "$line" >> /home/ozz/Scripts/temp/www3.cfg.tmp
>>                (
>>        cat <<'EOF'
>>                  'phy:/dev/volgrp/www3-var,xvda3,w',
>>                  'phy:/dev/volgrp/www3-tmp,xvda4,w',
>>                  'phy:/dev/volgrp/www3-home,xvda5,w',
>>                  'phy:/dev/volgrp/www3-home-logs,xvda6,w',
>> EOF
>>                ) >> /home/ozz/Scripts/temp/www3.cfg.tmp
>>        else
>>                echo "$line" >> /home/ozz/Scripts/temp/www3.cfg.tmp
>>        fi
>> done
>> mv -f /home/ozz/Scripts/temp/www3.cfg.tmp
>> /home/ozz/Scripts/temp/www3.cfg
>>
>> =============
>>
>>
>> Desired result:
>> =============
>> root        = '/dev/xvda2 ro'
>> disk        = [
>>                  'phy:/dev/volgrp/www3-swap,xvda1,w',
>>                  'phy:/dev/volgrp/www3-disk,xvda2,w',
>>                  'phy:/dev/volgrp/www3-var,xvda3,w',
>>                  'phy:/dev/volgrp/www3-tmp,xvda4,w',
>>                  'phy:/dev/volgrp/www3-home,xvda5,w',
>>                  'phy:/dev/volgrp/www3-home-logs,xvda6,w',
>>              ]
>> =============
>>
>> Actual result:
>> =============
>> root        = '/dev/xvda2 ro'
>> disk        = [
>> 'phy:/dev/volgrp/www3-swap,xvda1,w',
>> 'phy:/dev/volgrp/www3-disk,xvda2,w',
>> 'phy:/dev/volgrp/www3-var,xvda3,w',
>> 'phy:/dev/volgrp/www3-tmp,xvda4,w',
>> 'phy:/dev/volgrp/www3-home,xvda5,w',
>> 'phy:/dev/volgrp/www3-home-logs,xvda6,w',
>> ]
>>
>> =============
>>
>> I've GTFW and not found anything that works yet.
>>
>> Any suggestions?
>>
>> Thanks.
>>
>> Regards,
>> Ozz.
>>
>>
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