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    I used to work on MS Windows Platform but recently found that Linux Platform is very interesting. However, I have some difficulties in using Windows concept to understand Linux. Can anyone help me to start up learning? The followings are a few of my questions:

    1. I successfully installed Redhat 6.0. It comes with older version of Netscape and Apache Server. How can I replace them with newer versions. Do I need to uninstall them before installing new ones?

    2. What is the normal procedure of completely removing an application from Linux?

    3. I try to install Redhat 6.0 on a Notebook PC (Acer Travelmate 345). The installation process is quite smooth. However, when I boot the PC with this installation, it hung up at "starting pcmcia..." during the start up routine. Why?

    Thank you in advance for any assistance.
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    Welcome to Linux.

    Yes you should uninstall Apache before installing a new one. There should be has a couple graphical package management tools. One is called 'glint' (a little older and clumsier) and the other is called 'gnorpm'. Each of these will show installed software in a folder tree view, and you can browse through and uninstall anything you want.

    Linux doesn't have a registry like windows, so its not that hard to uninstall things manually, once you know the system layout a little better. I wouldn't recommend it now, but the hint is: most systemwide configuration files reside in '/etc', and for binaries and shared libraries look for the */bin, */sbin, */lib, */libexec and */include folders.

    For the TravelMate: have you tried starting up with and without a pcmcia card? Also, you might want a newer version of RedHat, for better hardware detection. I would recommend version 6.2, rather than version 7.0, as the "dot zero" releases have more bugs.

    Some useful web addresses:

    www.linuxnewbie.com
    www.linuxnewbie.org
    www.linux.com
    www.linuxstart.com

    www.tek-tips.com has a good section on linux

    http://www-106.ibm.com/developerworks/linux/ (IBM is helping push Linux these days)

    If you are working with Apache, you will want to learn the PHP programming language ( www.php.net ). It is quite easy to learn, and it relates well to C, C++, Java and even Javascript programming styles.

    After you have mastered Linux, check out FreeBSD ( www.freebsd.org ) for another free Unix OS. Actually it is Unix, while Linux is a Unix clone.
    The real n-tier system:

    FreeBSD -> PostgreSQL -> [any_language] -> Apache -> Mozilla/XUL

    Amazon wishlist -- rycamor (at) gmail.com
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    Cool Upgrading / Removing apps


    The methods for upgrading and for removing applications in linux depend upon the method used for installation. If you started with source and did a make; make install etc then to upgrade get the new source and do make; make install again.

    If you installed the apps using rpm the redhat package manager then read the help on this as it makes upgrading and removal very easy.

    I can't remember the exact switches off hand however to upgrade I think you use

    rpm -Uvh my-new-version-of-netscape.rpm

    there are switches to erase, install and update, see rpm --help for more info.


    There are also other ways such as manually but I would advise using rpm if that is what the package was installed with.

    Hope that helps

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