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apt-get command

Debian 7 Wheezy: Install Flash Player

I am a new Debian Linux version 7 user. I found out that Pandora player is not working due to Adobe flash player. How do I install and use flash player on Debian 7 with Firefox browser?
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Ubuntu Linux: Install vim Text Editor

I recently switched from OS X to Ubuntu. When I run the ‘vim file.c’ command at terminal, I see an error message that read as follows:

The program ‘vim’ can be found in the following packages:
* vim
* vim-gnome

* vim-tiny
* vim-athena
* vim-gtk
* vim-nox
Try: apt-get install <selected package>

How do I fix this problem and why vim is not a default text editor on Ubuntu Linux? How can I install full-fledged vim text editor in Ubuntu Linux?
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Nginx: SPDY SSL Installation and Configuration On a Debian / Ubuntu Linux

Google Chrome/Chromium, Firefox and Opera browser support SPDY networking protocol. It enables faster browsing on supported sites. SPDY is similar to HTTP, with particular goals to reduce web page load latency and improve web security. SPDY achieves reduced latency through compression, multiplexing, and prioritization. How do I enable nginx SPDY support running on Debian or Ubuntu Linux server?
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Ubuntu Linux: Install Latest Oracle Java 7

I am a network admin who recently made the switch from MS-Windows to Ubuntu Linux. I need to use Java and Firefox web browser plugin to run java applet. I am unable to access many devices such as Firewall appliance, LBS/VPX, and network equipments due to Ubuntu’s incompatible openjdk and icedtea plugin. I also searched software center but unable to find Oracle Java 7. How do I install Oracle Java 7 and get rid of this incompatibility problems on Ubuntu Linux amd64 v12.04 LTS or v13.04+?
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Linux: Dell Laptop Fan Control And Get CPU Temperature

I have installed Debian or Ubuntu Linux on Dell Inspiron / Latitude / Precision / Vostro laptop. How do I see the current CPU temperature? How do I control and see fan status on Dell laptop?
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Ubuntu Linux: Install Google Chrome Browser Command

I am unable to find Google Chrome Browser in Ubuntu software center. How do I install Google Chrome in Ubuntu version 12.04 LTS or v13.04 using command line options?
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Debian Linux: Upgrade v6.0.x Squeeze to v7.0.0 Wheezy

Recently Debian Linux version 7.0 (“Wheezy”) released. This version shipped with many new features – improvements to multimedia support, improved security through hardening flags and the OpenStack suite and the Xen Cloud Platform to name a few. How do I upgrades from Debian Linux version 6.x.x (squeeze) to the latest version 7.0.0 wheezy using command line options? How do I upgrade my Debian 6.x server to 7.x over the ssh session?
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Debian / Ubuntu: Set Port Knocking With Knockd and Iptables

My iptables based firewall allows only port TCP 80 and 443. I also need tcp port # 22, but I do not have static IP at my home. How do I open and close TCP port #22 on demand under Debian or Ubuntu Linux based server systems? How do I install a port-knock server called knockd and configure it with iptables to open tcp port #22 or any other ports?

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Debian / Ubuntu: Install gem The FrontEnd To Rubygems

How do I install rubygems package manager for Ruby on rails (RoR) under Debian or Ubuntu Linux operating systems?
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The Following Packages Were Automatically Installed And Are No Longer Required Warning

I have the following message whenever I use the apt-get command under Debian or Ubuntu Linux:

The following packages were automatically installed and are no longer required:
libaccess-bridge-java libjs-mochikit python-cheetah libjs-excanvas
libaccess-bridge-java-jni sabnzbdplus-theme-smpl tzdata-java
Use ‘apt-get autoremove’ to remove them.
0 upgraded, 0 newly installed, 0 to remove and 4 not upgraded.

How do I fix this issue? Is it safe to remove all unwanted packages?
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