Install opera in Ubuntu

1. sudo gedit/etc/APT/sources. List, add the opera official source:

Latest Version: Deb http://deb.opera.com/opera/ unstable non-free

Or choose a stable version: Deb http://deb.opera.com/opera/ stable non-free

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Public lock problem: in this case, I will generally: sudo RM/var/lib/APT/lists/lock

Useless:

Solution: run the following command to add a public key:
$ GPG -- keyserver subkeys.pgp.net -- Recv4f6c1e86
$ GPG -- export -- armor4f6c1e86| Sudo apt-key add-

-------------------------------
For error messages:

Reading the package list... complete
W: GPG signature verification error: http://deb.opera.com unstable release: because there is no public key,
The following signatures cannot be verified: no_pubkey 033431536a421_1
W: You may need to run apt-Get update to solve these problems.
-------------------------------

You need to4f6c1e86"Is replaced with the last eight digits of the string after" no_pubkey ", that is:
$ GPG -- keyserver subkeys.pgp.net -- Recv6a421_1
$ GPG -- export -- armor6a421_1| Sudo apt-key add-

 

2. Update: sudo apt-Get update

3. Install sudo apt-Get install Opera

4. Set it to the default browser:

Go to "System --> preferences --> preferred application"

On the "Web Browser" tab, select "Custom" and enter "opera-Newpage" % s"

Originally:/usr/lib/swiftfox/Firefox "% s"

Opera default font: Times New Roman [monotype]

 

5. Chinese questions:

Solution to opera Chinese font in Ubuntu Linux
File Name: font.ini.zip
Download link:
Http://www.rayfile.com/zh-cn/files/297f2ede-ae1a-11dd-9448-0014221b798a/

Opera font. INI is stored in the/usr/share/Opera/INI directory by default.
The font replacement mechanism is as follows:
If you have installed, the web page is displayed as.
If you use Ubuntu 8.x or 7.x but have installed wenquanyi, the Chinese character is displayed in wenquanyi by default. If this character is not found in the library, you can call the wending font display function.
If you are Ubuntu 7.x without wenquanyi or Microsoft, it will be displayed in the font of wending.