Linux, Which One to Study ?

Hi guys a couple of years ago I studied Linux Red Hat 7.3.  I havent touched it for a while but need to pic Linux back up.  My question is I guess Linux has moved on some what over the last 3 years.  So whats the experts advice on which version I should pickup and study / refresh my memory on now.  Stay with Red Hat 7.3 which I have or should I go for a different version ?

Your advice would be appreciated.
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You used to use RH?
So either go with RedHat's close or RedHat's development ground
I recommend those two, cause the RH itself is not free.

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Deepak KosarajuDevOps EngineerCommented:
There are different flavors of Linux Os in market like
for each flavor they have their own set of community desktop and server releases
for example: Redhat - Fedora (Community)
SuSe- Open SuSe
Debian - Ubuntu
So my suggestion is u start with FC 6 which is stable and which is equivalent to Redhat EL 5 Latest release of Redhat OS
And with regards to SuSe I recommend to have knowledge working on SuSe OS but Concentrate more on Redhat Version since u had background work on Redhat 7
But Many Changes and upgrades u can see in FC6 when u compared with Redhat 7 starting from Installation to functioning of Os
Gud Luck
I concur with ravelpl's suggestion.

Don't stay with RH7.3  It's ancient and unsupported.
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Ubuntu is quickly becoming most popular and most used and have a great platform for updating and supporting the os, i would concentrate on that if i were learning linux. Fedora is similar in strategy and is also a great choice.
Lee W, MVPTechnology and Business Process AdvisorCommented:
Staying with Red Hat 7.3 would be like staying with Windows 95.  Still many things apply with current versions, but MANY important things don't.

If your goal is to sell yourself to potential employers, then you want to stick with Red Hat (and derivatives of Red Hat, such as CentOS and Fedora) or MAYBE Suse.  that's what most businesses are using and what most software vendors support.
Pétur Ingi EgilssonSoftware Engineer -- ConsultantCommented:
My self i studied SuSE towards CLP10 ( Novell Certified Linux Professional 10 )
You can check out SLES (SuSE Linux Enterprise Server) and SLED (Enterprise Desktop) on
openSuSE is the "free" version of SuSE ( )
Ofcourse you can download and use SLES\SLED but you will not be able to update the system unless you pay Novell.

If your goal is not towards a certification.. then i'd go for Debian Linux.
Ubuntu ( is the offsprint of Debian ) and is consittered the fastest growing HomeUser linux distrobution.
I'd not go for Ubuntu my self ( ... imho it's a newbie os ) but knowledge of Debian will make you able to support Ubuntu users.

tickleonthetumAuthor Commented:
Guys you have all been very very helpful.  I'm going to go for derivatives of Red Hat, such as CentOS and Fedora thats everyone.
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