Sachit, that's a feature, not a bug. 
Changing the name of a file on disk being managed by Galaxy is unlikely to have a happy ending. 
The pencil icon allows changes to the history display name but the disk file name needs to be left alone.



On Wed, Jul 24, 2013 at 8:15 PM, Sachit Adhikari <sachit.technerves@gmail.com> wrote:
Yes, but unfortunately that didn't work too. I have already tried the solution you provided. I could edit the tags and annotations but it won't change the file name in my file system. The file is still named as "dataset_43649.dat". 


On Wed, Jul 24, 2013 at 3:52 PM, Peter Cock <p.j.a.cock@googlemail.com> wrote:
On Wed, Jul 24, 2013 at 10:35 AM, Sachit Adhikari
<sachit.technerves@gmail.com> wrote:
> Hi,
>
> By "i" do you mean Edit attributes button? There are four sub-headings on
> that: Attributes, Convert format, Datatype and permissions but I can't see
> data file's full path on any of them. What's wrong?

No, not the edit button.

First click on a dataset's title so it expands. You should see a snippet
of data etc plus a row of icons (save, information, reload in bottom
left of the history, and tags and annotation bottom right).

Peter


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