Deleting old files using stat
Bill H
the epoch) value returned by stat($filename) to find files (session
ids created by my program) that have not been accessed in 24 hours and
delete them.
But before I do this I thought I would ask if there was a better way
than itterating over all the files in a folder (could be 1000's of
them if the site is busy) and running stat on each and determining if
24 hours has passed?
The other question I had, if I do end up doing this, I should be able
to determine if 24 hours has passed if I subtract the atime from time
to get the number of seconds passed since it was last accessed,
correct?
Bill H
Ben Morrow
Quoth Bill H <bi...@ts1000.us>:
> I am thinking of using the "atime" (last access time in seconds since
> the epoch) value returned by stat($filename) to find files (session
> ids created by my program) that have not been accessed in 24 hours and
> delete them.
>
> But before I do this I thought I would ask if there was a better way
> than itterating over all the files in a folder (could be 1000's of
> them if the site is busy) and running stat on each and determining if
> 24 hours has passed?
Nope. About the only other option would be running some daemon that used
FAM or some other change-notify system to keep track of which files were
opened, but that would almost certainly be more expensive.
> The other question I had, if I do end up doing this, I should be able
> to determine if 24 hours has passed if I subtract the atime from time
> to get the number of seconds passed since it was last accessed,
> correct?
The -A operator is provided for exactly this sort of job.
Ben
--
Although few may originate a policy, we are all able to judge it.
Pericles of Athens, c.430 B.C.
b...@morrow.me.uk
Bill H
> Quoth Bill H <b...@ts1000.us>:
Thanks Ben. I wanted to ask to be sure. There has been a few times
where I have spent hours perfecting a routine only to find out that
there was a perl command I didnt know about that did the same thing
Bill H