[CentOS] Deleting contents of /tmp on shutdown

[tdukes at sc.rr.com]

---- Ross Walker <rswwalker at gmail.com> wrote: 
> On Dec 14, 2009, at 7:14 AM, "Thomas Dukes" <tdukes at sc.rr.com> wrote:
> 
> >
> >
> >> -----Original Message-----
> >> From: centos-bounces at centos.org
> >> [mailto:centos-bounces at centos.org] On Behalf Of Eero Volotinen
> >> Sent: Monday, December 14, 2009 3:27 AM
> >> To: CentOS mailing list; Sorin Srbu
> >> Cc: 'CentOS mailing list'
> >> Subject: Re: [CentOS] Deleting contents of /tmp on shutdown
> >>
> >> Quoting Sorin Srbu <sorin.srbu at orgfarm.uu.se>:
> >>
> >>>> -----Original Message-----
> >>>> From: centos-bounces at centos.org
> >> [mailto:centos-bounces at centos.org] On
> >>> Behalf
> >>>> Of Geerd-Dietger Hoffmann
> >>>> Sent: Saturday, December 12, 2009 11:22 PM
> >>>> To: CentOS mailing list
> >>>> Subject: Re: [CentOS] Deleting contents of /tmp on shutdown
> >>>>
> >>>> On Sat, Dec 12, 2009 at 10:05 PM, Thomas Dukes
> >> <tdukes at sc.rr.com> wrote:
> >>>>
> >>>> I have the /tmp in memory, which effectively deletes everything on
> >>>> reboot. Maybe another solution?
> >>>
> >>> How do you achieve that?
> >>> --
> >>> /Sorin
> >>>
> >>
> >> using tmpfs?
> >>
> >> http://kevin.vanzonneveld.net/techblog/article/create_turbocha
> >> rged_storage_using_tmpfs/
> >>
> >
> > One thing that's not clear in the two links that have been posted  
> > about
> > doing this is, do you add the line or replace the the line already  
> > present
> > in /etc/fstab?
> >
> > /dev/VolGroup00/LogVol00 /                       ext3     
> > defaults        1 1
> > LABEL=/boot             /boot                   ext3     
> > defaults        1 2
> > none                    /dev/pts                devpts   
> > gid=5,mode=620  0 0
> > none                    /dev/shm                tmpfs    
> > defaults        0 0
> > <----------
> > none                    /proc                   proc     
> > defaults        0 0
> > none                    /sys                    sysfs    
> > defaults        0 0
> > /dev/VolGroup00/LogVol01 swap                    swap     
> > defaults        0 0
> 
> Here is what I put in my fstab:
> 
> tmpfs /tmp tmpfs defaults 0 0
> 
> And your done. By default it will use 1/2 of your memory and under  
> pressure it's first to swap and even if you run off swap it gives  
> comparable performance to the way it is now.
> 
> -Ross

Thanks, Ross

Do I leave this line in tact or remove/replace it:

none    /dev/shm    tmpfs