Date: Wed, 16 Jan 2002 07:53:28 -0800 (PST) From: ann kok <annkok2001@yahoo.com> To: Giorgos Keramidas <keramida@FreeBSD.org> Cc: Jan Grant <Jan.Grant@bristol.ac.uk>, questions <questions@FreeBSD.org> Subject: Re: crontab to backup mail in date format Message-ID: <20020116155328.17373.qmail@web20108.mail.yahoo.com> In-Reply-To: <20020116033309.GB25005@hades.hell.gr>
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Dear Giorgos
Thank you
But I tried your command. but got the following
problem
Pls help again
[root@mail /tmp]# touch mail.2001.01.12.tar.gz
[root@mail /tmp]# touch mail.2001.01.13.tar.gz
[root@mail /tmp]# touch mail.2001.01.14.tar.gz
[root@mail /tmp]# touch mail.2001.01.15.tar.gz
[root@mail /tmp]# touch mail.2001.01.16.tar.gz
[root@mail /tmp]# ls -l mail*
-rw-r--r-- 1 root root 0 Jan 16
11:45 mail.2001.01.12.tar.gz
-rw-r--r-- 1 root root 0 Jan 16
11:45 mail.2001.01.13.tar.gz
-rw-r--r-- 1 root root 0 Jan 16
11:45 mail.2001.01.14.tar.gz
-rw-r--r-- 1 root root 0 Jan 16
11:45 mail.2001.01.15.tar.gz
-rw-r--r-- 1 root root 0 Jan 16
11:45 mail.2001.01.16.tar.gz
[root@mail /tmp]# ls -1 mail.*.tar.gz | sort -3 | sed
-e '1,3d'
sort: when using the old-style +POS and -POS key
specifiers,
the +POS specifier must come first
Try `sort --help' for more information.
--- Giorgos Keramidas <keramida@FreeBSD.org> wrote:
> On 2002-01-16 05:08:22, Giorgos Keramidas wrote:
> >
> > Sort backup archives by date, and erase everything
> that is older than
> > 3 days. If you have files called:
> >
> > % ls -1 mail.*
> > mail.2002.01.08.tar.gz
> > mail.2002.01.09.tar.gz
> > mail.2002.01.10.tar.gz
> > mail.2002.01.11.tar.gz
> > mail.2002.01.12.tar.gz
> >
> > and you want to erase all but the 3 last, you can
> use commands like:
> >
> > % ls -1 mail.*.tar.gz | sort -3 | sed -e '1,3d'
>
> Of course that should read: sort -r
>
> Bleh, I should stop replying to mail after 03:00 am.
>
> --
> Giorgos Keramidas . . . . . . . . .
> keramida@{ceid.upatras.gr,freebsd.org}
> FreeBSD Documentation Project . . .
> http://www.freebsd.org/docproj/
> FreeBSD: The power to serve . . . .
http://www.freebsd.org/
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