dpkg -l postfix

[Kaushal Shriyan]

On 2/23/07, Matthew Flaschen <matthew.flaschen at gatech.edu> wrote:
> Kaushal Shriyan wrote:
> > On 2/23/07, Matthew Flaschen <matthew.flaschen at gatech.edu> wrote:
> >> Kaushal Shriyan wrote:
> >>> Hi ALL
> >>>
> >>>  dpkg -l postfix
> >>> Desired=Unknown/Install/Remove/Purge/Hold
> >>> | Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
> >>> |/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
> >>> ||/ Name           Version        Description
> >>> +++-==============-==============-============================================
> >>> ii  postfix        2.2.10-1ubuntu A high-performance mail transport agent
> >>>
> >>> what does it signifies, I know that if a package is not installed
> >>> there will be no O/p
> >>>
> >>> Please make me understand
> >> What is O/p ?  Are you new to Ubuntu?  What are you trying to do?
> >>
> >> Details please.
> >>
> >> Matthew Flaschen
> >>
> >>
> >> --
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> >>
> >>
> >>
> >
> > Hi Matthew
> >
> > I am new to ubuntu and wanted to understand that Output (O/p means Output)
> >
> > Please let me know if you need any further information
>
> I'm not sure what the output means.  What are you trying to do?  If you
> want to install postfix enter:
>
> sudo apt-get install postfix
>
> To remove it,
>
> sudo apt-get remove postfix
>
> Matthew Flaschen
>
>
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> ubuntu-users at lists.ubuntu.com
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>
>
>

Thanks Matthew and Stephen
I was in the IRC Chat of #ubuntu and some one told me to use the below command
$dpkg -l postfix to check whether the application postfix has been
installed or not in the box ,was not able to understand the output of
dpkg -l postfix

~$ dpkg -l postfix
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
ii  postfix        2.2.10-1ubuntu A high-performance mail transport agent
~$

Would appreciate if you can make me understand what the above output says

Thanks and Regards

Kaushal