in ubuntu software center, opera is not there, why?

I don't think it's in the standard repos; it's in Opera's own repo. When I upgraded from 10.04 to 10.10, Ubuntu disabled the Opera repo.

I usually just get it from the Opera website.

You can add the Opera repos. From my Synaptic repo list under "Other":

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Good Opera Install post here also.

http://www.linuxquestions.org/questi...3/#post4216773

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i download debian package and install it, working fine.

@rokytnji: Thanks for the link to my post!

To any other Opera users (or potential Opera users), I also wrote a more general piece on my blog about Selecting a Linux or FreeBSD Opera package and installing it. It should help no matter what your distro of choice as long as it is reasonably modern.

I would also add that whilst it didn't help the original poster (who tried exactly this), it is always a good idea to look and see if your distro of choice already has Opera in their repositories. Many non RPM/Deb distros often repackage us into native format and even some RPM distros do so, so that the dependencies better match the host system, (e.g. ALT Linux).

P.S. If you use Slackware or a derivative and would prefer have a package that integrates with pkgtool (and the rest of the Slackware package management tools), there is an excellent Opera Slackbuild, or as an alternative you could use my op2slk script. This is perhaps most useful if you want an Opera release candidate, beta or snapshot (weekly development version). Of course you don't have to convert to native format. Our cross distro tar packages include an install script (and generate an uninstall script) that should work pretty much anywhere.

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Very cool.

I don't do beta. But in years of d/ling the *.tar.gz file and installing from Opera install.sh script on Slackware, I never had a glitch.

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That probably just means you are wise and suffer less problems than the rest of us!

Glad to here it! That said, we aren't particularly proud of our old install.sh, it suffered from several bugs and had no uninstall, so around 10.51 in the development builds we completely rewrote it.

Just a thought though on that. Since the old install.sh allowed for all kinds or custom install options and often did things in a less than sensible way, the new script does not attempt to cleanly upgrade it. The two scripts also default to slightly different default install locations.

We switched over at the 10.60 point in stable builds. So if your current distro/setup has never had an older build you need not worry because each subsequent upgrade would have been handled neatly. However, if you had older builds before (e.g. those with a version number of 10.20 or less) and are worried about any remnants of an old Opera lying around I generally recommend uninstalling everything (except obviously the preference files, which you will want to keep!) and then starting with a new clean install of the current version of Opera. This can save confusion later. If you need tips on how to clear out the old files read this.

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I use Seamonkey the most.