[bug #36452] xargs needs "-I" (eye) last ...

[Kevin]

URL:
  <http://savannah.gnu.org/bugs/?36452>

                 Summary: xargs needs "-I" (eye) last ...
                 Project: findutils
            Submitted by: dalecosp
            Submitted on: Fri 11 May 2012 05:16:28 PM GMT
                Category: xargs
                Severity: 3 - Normal
              Item Group: Wrong result
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.4.2
           Fixed Release: None

    _______________________________________________________

Details:

I ran an xargs(1) command in the BSD implementation with success and posted
the result at [url=http://board.phpbuilder.com/board/showthread.php?t=10384409
 PHPBuilder].  Lo & behold, it didn't work in a seven-year old version of GNU
xargs(1) ... unless we changed the invocation to put "-I" last, before
_argument_.

On GNU IRC's #gnu, user leo_rockway tested with findutils version 4.4.2, which
appears to be the latest available on most(?) public
[url=http://ftp.gnu.org/pub/gnu/findutils/ FTP sites].

To recap, this works in a non-GNU xargs(1) implementation:


find . -type f -print0 | xargs -I {} -0 -L 1 convert -compress JPEG -quality
75 {} {}


However, with GNU xargs(1) <=4.4.2, this results in convert complaining:

unable to open image `{}': @ error/blob.c/OpenBlob/2489.
missing an image filename `./gnu+linux.png' @
error/convert.c/ConvertImageCommand/2940.


Changing the invocation of GNU xargs(1) to this:

find . -type f -print0 | xargs -0 -L 1 -I {} convert -compress JPEG -quality
75 {} {}


Allows convert to function normally and complete the command (i.e. it gets the
correct arguments).  The only difference seems to be the location of the "-I"
parameter.

I do apologize if this has been fixed since 4.4.2 --- I see that several other
'releases' seem to be in the *Fixed Release* selector, but, as I mentioned, I
don't see them on the public FTP sites.  I'm a bit of a "newb" where GNU/Linux
are concerned, having spent years with the BSD family of OSen.  Thanks for
your time and contributions.




    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?36452>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/