Re: Question about "find -exec"

[James Mohr <linux-newbie@jimmo.com>]

On Wednesday 24 July 2002 09:07, Mike Castle wrote:
> In article <200207190752.38161.linux-newbie@jimmo.com>,
>
> James Mohr  <linux-newbie@jimmo.com> wrote:
> >You need to tell -exec which file to process. This is done with curly
> > braces:
> >
> >find /mnt/c/ -name *.snm -exec ls {} \;
> >
> >However, without the -exec, your command will simply list the files
> > anyway. I am assuming that this is just an example, and you would want to
> > do more than just list the file name. You could exand this concept and
> > use the curly
>
> Also, you should realize that for each file processed, there is the
> overhead of fork()/exec() calls.
>
> You would probably find something like:
>
> find /mnt/c -name '*.snm' | xargs -r ls -l
>
> to be significantly faster.
>
> If you expect that there will be any spaces involved, consider using
> -print0/-0 in addition:
>
> find /mnt/c -name '*.snm' -print0 | xargs -0 -r ls -l
>
> mrc

Valid point. However, I typically don't find it an issue unless you are 
running the -exec on 10K files. If it takes 0.1 second with xargs and 1 
second with -exec (which is 10 times as long), I don't see it is worth 
arguing about. 

However, it is **definately** worth mentioning and I have made a note to add 
it to my Linux Tutorial.

Regards,

jimmo

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