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From: "Michel LaBarre" <michel DOT labarre AT rogers DOT com>
To: "'Eric Blake'" <eblake AT redhat DOT com>, <cygwin AT cygwin DOT com>,
        <kipton_moravec AT yahoo DOT com>
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In-Reply-To: <c0b897be-d3cf-f3b9-cf5b-0024a1d395e5@redhat.com>
Subject: RE: Bash shell script issue
Date: Tue, 6 Sep 2016 21:41:16 -0400
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Suggestion to Kipton: 
    od -cx <name-of-your-script> 
will show you exactly what is in your script so you can see any spurious carriage-returns or other special characters.

> -----Original Message-----
> From: cygwin-owner AT cygwin DOT com [mailto:cygwin-owner AT cygwin DOT com] On
> Behalf Of Eric Blake
> Sent: September-06-16 9:21 PM
> To: cygwin AT cygwin DOT com; kipton_moravec AT yahoo DOT com
> Subject: Re: Bash shell script issue
> 
> On 09/06/2016 05:36 PM, Kipton Moravec wrote:
> 
> > I this is the script:
> > #!/bin/bash
> > echo $PWD
> 
> Insufficient quoting. This does not do the right thing if $PWD contains
> spaces.  But not necessarily related to your problem at hand.
> 
> > project_root=$PWD
> > echo $project_root
> 
> Again, insufficient quoting.
> 
> > x=${project_root}/tools
> > echo $x
> 
> And again.
> 
> > echo ${x} | cat -A
> >
> > On original Windows 7 computer I get:
> > dalkmora AT DALM0048
> ~/walnut/dp2b_walnut_customer_flextronics/walnut
> > $ ./testconvert1.sh
> > /home/dalkmora/walnut/dp2b_walnut_customer_flextronics/walnut
> > /home/dalkmora/walnut/dp2b_walnut_customer_flextronics/walnut
> > /toolsdalkmora/walnut/dp2b_walnut_customer_flextronics/walnut
> >
> /home/dalkmora/walnut/dp2b_walnut_customer_flextronics/walnut^M/to
> ols^M$
> 
> The carriage returns are likely a product of you editing the file in
> text mode (Windows notepad is notorious for this, but many other native
> programs do likewise), but trying to execute the script in binary mode
> (the default, if you do not use 'set -o igncr').
> 
> 
> > What am I doing wrong or is this an error?
> > Where do the carriage returns (^M) come from, and how do I get rid of
> them?
> 
> d2u /path/to/your/script
> 
> to remove all the carriage returns from your careless editing. Once they
> are gone, then you don't need the 'igncr' crutch to tell bash to go into
> text mode.
> 
> --
> Eric Blake   eblake redhat com    +1-919-301-3266
> Libvirt virtualization library http://libvirt.org



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