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Subject: Re: Bash shell script issue
To: cygwin AT cygwin DOT com, kipton_moravec AT yahoo DOT com
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Date: Tue, 6 Sep 2016 20:21:23 -0500
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From: Eric Blake <eblake AT redhat DOT com>
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Subject: Re: Bash shell script issue
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On 09/06/2016 05:36 PM, Kipton Moravec wrote:

> I this is the script:=20
> #!/bin/bash=20
> echo $PWD=20

Insufficient quoting. This does not do the right thing if $PWD contains
spaces.  But not necessarily related to your problem at hand.

> project_root=3D$PWD=20
> echo $project_root=20

Again, insufficient quoting.

> x=3D${project_root}/tools=20
> echo $x=20

And again.

> echo ${x} | cat -A=20
>=20
> On original Windows 7 computer I get:=20
> dalkmora AT DALM0048 ~/walnut/dp2b_walnut_customer_flextronics/walnut=20
> $ ./testconvert1.sh=20
> /home/dalkmora/walnut/dp2b_walnut_customer_flextronics/walnut=20
> /home/dalkmora/walnut/dp2b_walnut_customer_flextronics/walnut=20
> /toolsdalkmora/walnut/dp2b_walnut_customer_flextronics/walnut=20
> /home/dalkmora/walnut/dp2b_walnut_customer_flextronics/walnut^M/tools^M$=
=20

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?=20
> Where do the carriage returns (^M) come from, and how do I get rid of the=
m?=20

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.

--=20
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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