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From: mop2 on 12 Feb 2010 06:01
On Fri, 12 Feb 2010 03:53:04 -0200, Hongyi Zhao
<hongyi.zhao(a)gmail.com> wrote:

> On Fri, 12 Feb 2010 16:31:36 +1100, Ben Finney
> <ben+unix(a)benfinney.id.au> wrote:
>
>> As usual, ‘find(1)’ is your friend. Read about the ‘-maxdepth’ and
>> ‘-size’ options.
>
> In my case, I want to delete the empty files just in the current
> directory among the following names:
>
> myfile.pdf
> myfile.1.pdf
> myfile.2.pdf
> myfile.3.pdf
> ...
>
> I use the following code:
>
> find . -maxdepth 1 -name "myfile*".pdf -type f -size 0 -exec rm
> {} \;
>
> This will do the trick, but I still have the following issues:
>
> 1- The "myfile*".pdf regexp is too loose and may lead to some
> files,
> say, myfileone.pdf, been deleted accidentally. So, how can I
> improve
> the match pattern to perform exact search and remove operations?
>
> 2- The above code is based on someone else's examples on the
> internet.
> I don't understand the function of the *{} \* part in the end. Any
> hints?
>
> Regards.

Are just 4 pdf files?
So with bash (I don't know about others) you can try:
for f in myfile.pdf myfile.{1..3}.pdf;do [ -e $f ]&&[ ! `head -c1
$f` ]&&rm $f; done
From: Stephane Chazelas on 12 Feb 2010 05:35
On 2010-02-12, Hongyi Zhao <hongyi.zhao(a)gmail.com> wrote:
[...]
> I want to delete empty files in the current directory but not the ones
> in the sub-directories of current directory. Any hints?
[...]

With zsh:

rm myfile*.pdf(.L0)

--
Stephane
From: Laurianne Gardeux on 12 Feb 2010 05:19
Hongyi Zhao à écrit :

> Hi all,
>
> I want to delete empty files in the current directory but not the ones
> in the sub-directories of current directory. Any hints?
>
> Regards.

With the GNU find:

$ find . -maxdepth 1 -type f -empty -delete


LG
From: Kaz Kylheku on 12 Feb 2010 11:23
On 2010-02-12, Hongyi Zhao <hongyi.zhao(a)gmail.com> wrote:
> In my case, I want to delete the empty files just in the current
> directory among the following names:
>
> myfile.pdf
> myfile.1.pdf
> myfile.2.pdf
> myfile.3.pdf
> ...
>
> I use the following code:
>
> find . -maxdepth 1 -name "myfile*".pdf -type f -size 0 -exec rm {} \;
>
> This will do the trick, but I still have the following issues:

You can't accurately match the above set with a single file glob,
because the glob language lacks disjunction. But find has disunction:
the -o (or) operator.

-maxdepth 1 \( -name myfile.pdf -o -name "myfile.[0-9].pdf" \) ...

Say, do you need a diaper change and burp?
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