On Thu, Jan 08, 2009 at 12:03:38 +0200, Micha Feigin (michf@post.tau.ac.il) wrote:

> find . -type f -exec echo `echo '{}' | tr "[:upper:]" "[:lower:]"` ;
>
> also fails to convert the file to lower case for some reason (same problem,
> doesn't change the case, as if it doesn't see the characters).

find . -type f | xargs rename y/A-Z/a-z/

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On Thu, Jan 08, 2009 at 12:03:38 +0200, Micha Feigin (michf@post.tau.ac.il) wrote:

> I'm trying to fix the file suffix on some file in my directories using sed and
> find but for some reason sed doesn't match the string in this manner, that is
> running
> find . -name "*.JPG.jpg" -execdir echo `echo '{}' | sed -e 's/(.*).JPG.jpg/1.jpg/' -` ;

find . -type f | xargs rename s/JPG.jpg/jpg/

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Bob Cox schrieb:
On Thu, Jan 08, 2009 at 12:03:38 +0200, Micha Feigin (michf@post.tau.ac.il) wrote:


find . -type f -exec echo `echo '{}' | tr "[:upper:]" "[:lower:]"` ;

also fails to convert the file to lower case for some reason (same problem,
doesn't change the case, as if it doesn't see the characters).


find . -type f | xargs rename y/A-Z/a-z/



If you have file names with special characters in it, e.g. blank
characters, better use:


find . -type f -print0| xargs -0 rename y/A-Z/a-z/

or

find . -type f | while read FILE;do rename y/A-Z/a-z/ "$FILE";done




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On Thu, 08 Jan 2009 11:24:27 +0100
Sven Joachim <svenjoac@gmx.de> wrote:

> On 2009-01-08 11:03 +0100, Micha Feigin wrote:
>
> > I'm trying to fix the file suffix on some file in my directories using sed
> > and find but for some reason sed doesn't match the string in this manner,
> > that is running
> > find . -name "*.JPG.jpg" -execdir echo `echo '{}' | sed -e
> > 's/(.*).JPG.jpg/1.jpg/' -` ; on a directory with
> > 2005_10_09-03_05_11.JPG.jpg
> > prints
> > 2005_10_09-03_05_11.JPG.jpg
> > instead of
> > 2005_10_09-03_05_11.jpg
> >
> > any idea what I'm doing wrong?
>
> The shell does the process substitution before find even sees it:
> `echo '{}' | sed -e 's/(.*).JPG.jpg/1.jpg/' -` is substituted by its
> output, which is "{}", so you are effectively running
>
> find . -name "*.JPG.jpg" -execdir echo {} ;
>
> which is not what you intended.
>
> > find . -type f -exec echo `echo '{}' | tr "[:upper:]" "[:lower:]"` ;
> >
> > also fails to convert the file to lower case for some reason (same problem,
> > doesn't change the case, as if it doesn't see the characters).
>
> It does indeed not see them, it only sees {}.
>

doing
find . -type f -exec echo '{}' | tr "[:upper:]" "[:lower:]" ;
gives the expected output
on the other hand
find . -type f -exec echo `echo '{}' | tr "[:upper:]" "[:lower:]"` ;
doesn't so trying to execute the command and output it to echo fails. Seems
like I'm not clear on the substitution rules in this case


> Sven
>
>


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On Thu, Jan 08, 2009 at 12:03:38PM +0200, Micha Feigin wrote:
> I'm trying to fix the file suffix on some file in my directories using sed and
> find but for some reason sed doesn't match the string in this manner, that is
> running
> find . -name "*.JPG.jpg" -execdir echo `echo '{}' | sed -e 's/(.*).JPG.jpg/1.jpg/' -` ;
> on a directory with
> 2005_10_09-03_05_11.JPG.jpg
> prints
> 2005_10_09-03_05_11.JPG.jpg
> instead of
> 2005_10_09-03_05_11.jpg
>
> any idea what I'm doing wrong?
>
> find . -type f -exec echo `echo '{}' | tr "[:upper:]" "[:lower:]"` ;

I think you will find `echo '{}' | tr "[:upper:]" "[:lower:]"` is being
executed by the shell before it executes find

>
> also fails to convert the file to lower case for some reason (same problem,
> doesn't change the case, as if it doesn't see the characters).
>
> Thanks
>
>
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> To UNSUBSCRIBE, email to debian-user-REQUEST@lists.debian.org
> with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
>
>

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