Re: how to check whether a package has been installed

["Bill Jones" <tetragondzein@gmail.com>]

On 6/26/06, Martin Paraskevov <ze.marto@gmail.com> wrote:
> rpm lets you check whether a packege has been installed.
> is this possible to do with apt-get or some other tool as well?

apt-cache policy package

For example:
debian:~# apt-cache policy aptitude
aptitude:
 Installed: 0.4.1-1.1
 Candidate: 0.4.1-1.1
 Version table:
*** 0.4.1-1.1 0
       500 http://ftp.us.debian.org etch/main Packages
       100 /var/lib/dpkg/status

debian:~# apt-cache policy yum
yum:
 Installed: (none)
 Candidate: 2.4.0-3
 Version table:
    2.4.0-3 0
       500 http://ftp.us.debian.org etch/main Packages
debian:~#

HTH/Sx =)
--
WC (Bill) Jones -- http://youve-reached-the.endoftheinternet.org/