[ale] Keep space separated values sane in a bash "for" loop?

[James P. Kinney III]

The issue is the $IFS character is set by the default bash environment.
It is always " ". To muck with it do the following:

oldifs=$IFS

IFS=<new character to split on>

Here's where is gets wacky. Most likely what you really want to do is
split the stuff on the new line character. In bash it is "\n".

BUT things can get wonky depending on more stuff than I can remember.

But this works:

export oldifs=$IFS
export IFS="\n"
for i in `ls -1`; do echo $i; done
file 3
file1
file2

Close the shell and it all goes away. :)

On Thu, 2007-04-05 at 20:37 -0400, Christopher Bergeron wrote:
> J.D.  - double quoting the output doesn't add any benefit when used in a 
> bash for loop.  For example:
> 
> for i in `\ls -Q`; do echo "Filename: $i:"; done
> 
> Still breaks the filenames up at the space.  I've tried escaping the 
> quotes (single and double), so I don't think that's the correct 
> solution.  I appreciate your suggestion though, so thank you.
> 
> Kind regards,
> CB
> 
> 
> J. D. wrote:
> > If you are using ls you could try looking into the Q option. It 
> > double-quotes
> > the output.
> >
> > ls -Q
> >
> > Best regards,
> >
> > J. D.
> >
> > On 4/5/07, *Christopher Bergeron * <christopher at bergeron.com 
> > <mailto:christopher at bergeron.com>> wrote:
> >
> >     Guys, I'm not sure how to word my question appropriately, so I'll
> >     try to
> >     explain what I'm trying to do in code.
> >
> >     I have a bash for loop, and when it encounters a value with a
> >     space, it
> >     splits it into separate entities.  For example:
> >
> >     With a file list of:
> >     /bin
> >     /usr
> >     /Virtual Machines
> >
> >     and a code snippet of:
> >
> >     for i in *; do
> >     echo "Filename is: $i"
> >     done
> >
> >     The output is:
> >
> >     Filename is: bin
> >     Filename is: usr
> >     Filename is: Virtual
> >     Filename is: Machines
> >
> >     How can I tell bash to keep these values together, so that I get the
> >     filenames intact as:
> >     Filename is: bin
> >     Filename is: usr
> >     Filename is: Virtual Machines
> >
> >     Thanks in advance...
> >
> >     Kind regards,
> >     Chris Bergeron
> >     http://chrisbergeron.com
> >
> >
> >     _______________________________________________
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> >     Ale at ale.org <mailto:Ale at ale.org>
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> >
> >
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-- 
James P. Kinney III          
CEO & Director of Engineering 
Local Net Solutions,LLC        
770-493-8244                    
http://www.localnetsolutions.com

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney at localnetsolutions.com>
Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7
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