Re: date problem with ls -la --time=ctime

[Michael Kearey <mkearey redhat com>]

On Mon, 2005-04-18 at 12:57 +0200, Rainer Traut wrote:
> Hi,
> 
> we are running Domino 6.53 on el3 u4.
> Due to the way domino's java detachs and attachs file from the databases
> we see many tmp files in our tmp dir.
> We haven't found a way around so far other than deleting them via a cron 
> job.
> 
> I wanted to run this every two hours, delete all tmp files not accessed 
> within the last 15 minutes.
> 
> Here is the strange behaviour:
> 
> [root asp5 tmp]# ls -la /tmp/eo-1528902312tm
> -rw-rw-r--    1 notes    notes      628155 15. Apr 15:49 
> /tmp/eo-1528902312tm
> [root asp5 tmp]# ls -la /tmp/eo-1528902312tm --time=status
> -rw-rw-r--    1 notes    notes      628155 18. Apr 12:34 
> /tmp/eo-1528902312tm
> [root asp5 tmp]# ls -la /tmp/eo-1528902312tm --time=atime
> -rw-rw-r--    1 notes    notes      628155 18. Apr 12:39 
> /tmp/eo-1528902312tm
> [root asp5 tmp]# ls -la /tmp/eo-1528902312tm --time=access
> -rw-rw-r--    1 notes    notes      628155 18. Apr 12:39 
> /tmp/eo-1528902312tm
> [root asp5 tmp]# ls -la /tmp/eo-1528902312tm --time=use
> -rw-rw-r--    1 notes    notes      628155 18. Apr 12:39 
> /tmp/eo-1528902312tm
> [root asp5 tmp]# ls -la /tmp/eo-1528902312tm --time=ctime
> -rw-rw-r--    1 notes    notes      628155 18. Apr 12:34 
> /tmp/eo-1528902312tm
> [root asp5 tmp]#
> 
> Question is, what time does ls -la show?
> The man page says 'change time', so ctime?


Hi,

ls -lt -c  should show time of last modification of file  status
information

ls -lt -u  should show the last accessed time.


I am not sure how critical it is to do this for files with '15 minutes
since atime or ctime', but, I'd  look at tmpwatch. It has a time
resolution of 1 hour only though.


The file /etc/cron.daily/tmpwatch will show a hint how to use it. You
could set up cron to run tmpwatch over a particular directory and set
the application to use that directory for it's 'cache'

Cheers,
Michael