apt-get

Jeremy C. Reed wrote:
> On Mon, 11 Aug 2003, Mike Starke wrote:
>
> > On Mon, Aug 11, 2003 at 07:30:47AM -0700, Michael Havens wrote:
> > /_HOw does apt-get work? Do you type ion what you want and then it
> searches the
> > /_web for said program until it finds it?
> > /_
> >
> > In the file /etc/apt/sources.list is a list of sites that apt uses
> > to build a "database" of files available.
> >
> > 'apt-cache search <package>' will search that database to see if it
> is available.
> > 'apt-get install <package>' will install that package by first
> retrieving it from
> > a site in /etc/apt/sources.list.
>
> And "apt-get update" is used to update the database (so you can install or
> upgrade to new software versions, for example).
>
> Also, Mike, you can learn more about it at:
> http://www.debian.org/doc/manuals/reference/ch-system.en.html#s-apt
> http://www.debian.org/doc/manuals/users-guide/ch-iraus.en.html#s-iarpwtagc
> http://www.debian.org/doc/manuals/debian-tutorial/ch-dpkg.html#s-dpkg-apt
> http://www.debian.org/doc/manuals/apt-howto/
>

>    Jeremy C. Reed
>    http://www.reedmedia.net/

>
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ObArchive
===========

apt will also work with dselect so you can:

dpkg --get-selections > INSTALLED

copy INSTALLED to a fresh Debian installed system

dpkg --set-selections < INSTALLED

apt-get dselect-upgrade

to "clone" a running box.

If you want to skip the man pages and like a GUI, try "synaptic".

apt-config is nice for making sure that things like proxy and other
settings can be saved/copied or checked for sanity or just to find
out where things are.

example: apt-config dump

APT "";
APT::Architecture "i386";
APT::Build-Essential "";
APT::Build-Essential:: "build-essential";
APT::Cache-Limit "12582912";
Dir "/";
Dir::State "var/lib/apt/";
Dir::State::lists "lists/";
Dir::State::cdroms "cdroms.list";
Dir::State::userstatus "status.user";
Dir::State::status "/var/lib/dpkg/status";
Dir::Cache "var/cache/apt/";
Dir::Cache::archives "archives/";
Dir::Cache::srcpkgcache "srcpkgcache.bin";
Dir::Cache::pkgcache "pkgcache.bin";
Dir::Etc "etc/apt/";
Dir::Etc::sourcelist "sources.list";
Dir::Etc::vendorlist "vendors.list";
Dir::Etc::vendorparts "vendors.list.d";
Dir::Etc::main "apt.conf";
Dir::Etc::parts "apt.conf.d";
Dir::Etc::preferences "preferences";
Dir::Bin "";
Dir::Bin::methods "/usr/lib/apt/methods";
Dir::Bin::dpkg "/usr/bin/dpkg";
DPkg "";
DPkg::Pre-Install-Pkgs "";
DPkg::Pre-Install-Pkgs:: "/usr/sbin/dpkg-preconfigure --apt || true";
Acquire "";
Acquire::http "";
Acquire::http::Proxy "http://IPADDRESS:PORT";


Then tie it all together with something like this:
apt-get update
apt-get dselect-upgrade
apt-get upgrade
apt-get dist-upgrade
apt-get clean
apt-get autoclean
dpkg --get-selections > /root/INSTALLED
apt-config dump > APTCONFIG 2>&1


HTH. HAND.

--
begin sig.txt
JLF Sends...
Jean L. Francois - Enterprise Linux Architect
Ciber, Inc. @ FSIC - Ford Systems Integration Center
"Failure is only postponed success as long as courage
'coaches' ambition. The habit of persistence is the
habit of victory."
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