Learn one at a time. As for software, ALL distros have same set of software available.
I suggest keeping ubuntu for some time longer and then getting fedora next year after a few months.
Keeping two distros on same PC at a time would also kill your internet connection. Lots to download if you want to keep both updated.
Linux Mint is best said as Ubuntu for the casual user. Don't consider it now that you installed Ubuntu. Its pointless now to install it. You would learn much faster with ubuntu.
And OpenBSD is not linux. Its a BSD. Definitely not recommended at this stage. You have a long way to go before you can find OpenBSD comfortable to use. First learn linux.
Most collages are now teaching linux instead of unix and most unix commands work on linux. However, if you are one of the unlucky few who need to learn using UNIX, the only 100% unix compatible OS which is free to use is Sun Microsystems' Solaris OS. Its not too hard to use BTW.
I may have missed some, but you just need to use search function in synaptic package manager.Code:sudo apt-get install build-essential mysql-server mysql-client eclipse netbeans python bluefish
You would love it, because its the best freeware html editor available for ANY OS. It may not be a DreamWeaver, but its definitely usable enough for newbies. And its FREE.Code:sudo apt-get install [B]kompozer[/B]
Really thanks for reply??
BTW is netbeans good option for a newbie??