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Showing posts from February, 2011

Removing packages from linux (ubuntu)

I tried to remove the packages from maverick (Ubuntu 10.10), today..and found some good ways to do it (A)First search the package : The traditional way: dpkg -l | grep partial-name-of-package-to-be-removed Using dpkg command ....more conspicuous way dpkg -l '* partial-name-of-package-to-be-removed *' For example, you want to remove jdk then dpkg -l '*jdk*' (B)There are two ways to remove packages: Using apt command : ...the better way... After getting the list of packages choose the appropriate one and run following command * To remove packages: sudo apt-get remove package-name * To remove packages and dependencies: sudo apt-get autoremove package-name * To remove packages, dependencies and configuration files: sudo apt-get purge package-name Using dpkg command : ...the crude way... * To remove packages: sudo dpkg -r package-name * To remove packages,and configuration files: sudo dpkg --purge package-name * To force removal, if got depe...

What is an Open System?

I used 'Open System' term many times but today I got some time to think, in detail, about the very deep meaning of it. So here it goes... An open system is one for which the architecture is not a secret. Just take example of TCP/IP system, which is Open. The TCP/IP protocols are same for every system. Whether its your laptop-PC using TCP/IP or your android smart-phone downloading apps from market. The architecture is same irrespective of the systems that use them. So this has many advantages, UNIX is a very good example of Open system software.