Date: Tue, 22 Jan 2002 04:22:23 +0200 From: Giorgos Keramidas <keramida@FreeBSD.org> To: ann kok <annkok2001@yahoo.com> Cc: questions@FreeBSD.org Subject: Re: crontab to backup mail in date format Message-ID: <20020122022223.GB3900@hades.hell.gr> In-Reply-To: <20020121204723.40222.qmail@web20103.mail.yahoo.com> References: <20020117015810.GB20298@hades.hell.gr> <20020121204723.40222.qmail@web20103.mail.yahoo.com>
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On 2002-01-21 12:47:23, ann kok wrote:
>
> AFTER SED
> [root@mail /backup]# ls -1 *backmail.tar.gz | sort -r | sed -e 1,3d
> 221428 2002-01-17backmail.tar.gz
> 220500 2002-01-13backmail.tar.gz
> 217924 2001-12-31backmail.tar.gz
> 215380 2002-01-15backmail.tar.gz
> 214400 2002-01-16backmail.tar.gz
> 187880 2002-01-07backmail.tar.gz
> 0 2002-01-20backmail.tar.gz
Your ls is aliased to something:
hades!charon:[/tmp]% /bin/ls -1
0/
mutt-hades-3900-20
screens/
ssh-FkZb0108/
The -1 option of ls(1) will only print *one* column of data.
Yours prints the size of the file too, which means you probably have
`ls' aliased to `ls -s'.
The size column in front of the filename makes sort behave in the
strange way you have noticed. Since sort does not know you need to
sort everything `after the first space'.
Try using /bin/ls as the listing command, which will not be affected
by any aliases you happen to have at the moment.
--
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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