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

[James P. Kinney III]

This is a bit better:

find . -maxdepth 1 -mindepth 1 -type d -print0 | xargs -0 du -sh

the -print0 forces find to use a null character as a delimiter and the
-0 in the xargs says to use a null as the delimiter. Dodges the entire
mess of spaces in the names.

On Mon, 2007-04-09 at 19:59 -0400, James P. Kinney III wrote:
> On Mon, 2007-04-09 at 18:11 -0400, Christopher Bergeron wrote:
> > This solution doesn't work with "du" for some reason.
> > 
> > #!/bin/bash
> > oldifs=$IFS
> > export IFS=","
> > for i in `ls -m|sed 's/, /,/g'`
> > do
> > du -sH \"$i\"
> > done
> > export IFS=$oldifs
> > 
> > It appears its turning all of the elements $i into a single variable.
> > 
> > This code demonstrates:
> > 
> > #!/bin/bash
> > oldifs=$IFS
> > export IFS=","
> > for i in `ls -m|sed 's/, /,/g'`
> > do
> > echo du -sh \"$i\"
> > done
> > export IFS=$oldifs
> > 
> > 
> > What I'm trying to do is create a script that will do "du -sh" on each 
> > directory listed in the current directory. This is what I have so far:
> > 
> > alias diskpie='for i in `\ls -l | grep drwx | tr -s " " | cut -f9 -d " 
> > "`; do du -sh $i; done'
> > 
> > It works great unless it encounters a directory with a space in the name.
> > 
> > Anyone have any other ideas?
> > 
> 
> find . -maxdepth 1 -mindepth 1 -type d | sed 's/\ /\\ /g'|sed 's/.\///'|
> xargs du -sh
> 
> > Kind regards,
> > Chris
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > Robert Story wrote:
> > > On Fri, 6 Apr 2007 12:18:08 -0400 Robert wrote:
> > > RS> On Thu, 5 Apr 2007 20:13:06 -0400 aaron wrote:
> > > RS> A> Here's technique that might help. I whipped this up for dealing with
> > > RS> A> spaced names common to audio file that I wanted to batch convert
> > > RS> A> to mp3.  Works with bash on Mac -- should work with Linux bash as
> > > RS> A> well. The trick was to pipe the file listing to READ from STDIN instead
> > > RS> A> of letting a FOR loop parse the input:
> > > RS> 
> > > RS> This works great for embedded spaces, but not so much for spaces at the
> > > RS> beginning or end of a file name...
> > >
> > >
> > > I've had this same problem for a while, and have always done manual clean-up.
> > > After trying these solutions and reading the ls man page, I now have a working
> > > solution that handles spaces anywhere in the name.
> > >
> > > #!/bin/bash
> > > oldifs=$IFS
> > > export IFS=","
> > > for i in `ls -m|sed 's/, /,/g'`
> > > do
> > >    echo \"$i\"
> > > done
> > > export IFS=$oldifs
> > >
> > >
> > > Of course, the above will break for files with a ',' in them, but I can live
> > > with that... the paranoid could add an initial ls|grep to check and warn for
> > > that case...
> > > _______________________________________________
> > > Ale mailing list
> > > Ale at ale.org
> > > http://www.ale.org/mailman/listinfo/ale
> > >
> > >   
> > 
> > _______________________________________________
> > Ale mailing list
> > Ale at ale.org
> > http://www.ale.org/mailman/listinfo/ale
> _______________________________________________
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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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