Date: Mon, 17 Mar 2003 19:50:51 +0000 (GMT) From: Rus Foster <rghf@fsck.me.uk> To: Tom Parquette <tparquet@twcny.rr.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Shell scripting questions Message-ID: <20030317194718.D38163@thor.65535.net> In-Reply-To: <3E762419.3040900@twcny.rr.com> References: <3E762419.3040900@twcny.rr.com>
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On Mon, 17 Mar 2003, Tom Parquette wrote:
> The closest I can come to determining the size of the output file from
> tar (e.g.ad0s1a.tgz) is: file_size=`du -k /tmp/ad0s1a.tgz`.
You can get just the first coloumn of something by doing something like
du -k /tmp/ad0s1a.tgz | awk '{ print $1 }'.
That should help you a bit for that
> 2) I have a function written that will tar/gzip the filesystem then
> split it into pieces that will be turned into .iso files that will be
> fed to burncd. I would like to capture the output of commands (e.g. ls
> -l /tmp/ad0s1a.*) into a "table" that I can examine to determine what
> was output by the split command so I know what mkisofs commands, and how
Could you do something like
for i in /tmp/ad0s1a.tgz.?? ; do mkiosfs ..... ; done
> I also hope to use the same technique for determining what filesystems
> I have to backup in the first place. e.g. If I do a df command I want
> to pull out the filesystem name and what mountpoint it is on. The
You might have slightly nicer format if you use just the "mount" command
on its own. If you couple it with the awk command say
mount | awk '{ print $1,$2 }'
Play have fun :)
Rgds
Rus
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