http://askubuntu.com – I am using Ubuntu 12.10 with mono-complete installed. Being a chemical engineer I required some 'Process Simulation' application & I found it in DWSIM. (HowTos)

http://askubuntu.com – i ordered many softwares from ubuntu center then the electricity goes down and when i relaunch my laptop the problem was with Dropbox or nautilus as it wrote i tried gsku nautilus and i deleted all files in /var/lib/dpkg/updates and when i try to install or remove or update any software it doesnt allow me it says i have to go to terminal and typesudo apt-get install -f when i applied it says (HowTos)

http://unix.stackexchange.com – When I tried to "sudo su" instead of "sudo su -" after having been logged in as root and su-ing to another user, it tries to sudo me as the new user, but via root... When I type env, it shows still username=root in the environment. Is sudo not looking at the currently logged in user, but at the enviroment parameters? (HowTos)

http://stackoverflow.com – I am using VM VirtualBox and installed xampp in it. I want to write a perl script which can communicate with Mysql. But there is an error said it can not load DBI. My friend try to solve it and he changed some dir. But the problem has not been resolved. It seems like there is already a perl in VirtualBox before I install Xampp. (HowTos)

http://unix.stackexchange.com – I'm running zsh on Linux under setopt extended_glob ksh_glob glob_dots. I'm looking for something easy to type on the command line, with no portability requirements. I'm looking at a source code tree, with no “weird” file names (e.g. (HowTos)