Thank you for the advice.

John Bolster

> -----Original Message-----
> From: Matthew Seaman [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, September 18, 2002 8:57 AM
> To: John Bolster
> Cc: Freebsd-Questions@Freebsd. Org
> Subject: Re: mailchk.026233
>
>
> On Tue, Sep 17, 2002 at 05:22:39PM -0400, John Bolster wrote:
>
> > I've found hundreds of files with names like mailchk.xxxxxx in my /tmp
> > directory. This is FreeBSD 4.1 RELEASE, the server runs the UW
> IMAP server
> > and Squirrelmail. Does anyone know if these files can be safely deleted?
> >
> > Also, in /var/tmp there are hundreds of phpxxxxxx files. Same question.
>
> The answer is "probably yes".  Those files are temporary storage used
> by various programs to cache some data in, and maybe hand it over to
> some other process for dealing with.  The program will typically use
> each one once and then open up a new file the next time it needs that
> sort of thing.  (Hence the numbers to ensure unique temporary file
> names).  Well behaved programs will delete the files once they've
> finished using them.  Cunning programs will use the mkstemp(3) call to
> get a unique filename and open the file in one fell swoop.  Really
> cunning programs will do that, and unlink the files *before* they've
> used them, just keeping the open file descriptor to access their
> temporary space.
>
> Use the fstat(1) command to see if any processes have the files open.
> If not, try deleting some of them. If there are no howls of protest
> from your user base, I'd say you're probably OK to clean out those
> directories.
>
>       Cheers,
>
>       Matthew
>
>
> --
> Dr Matthew J Seaman MA, D.Phil.                       26 The Paddocks
>                                                       Savill Way
>                                                       Marlow
> Tel: +44 1628 476614                                  Bucks., SL7 1TH UK


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