I‘ve downloaded Firefox version 14.0.1 from mozilla ftp server. The name of file is firefox-14.0.1.tar.bz2. How do I install firefox in any Linux distribution?
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I‘ve downloaded Firefox version 13.0 from mozilla server. The name of file is firefox-13.0.tar.bz2. How do I install firefox-13.0.tar.bz2 in any Linux distribution?
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I have multiple version of gcc installed on my Linux based system as follows:

ls -l /usr/bin/gcc*
lrwxrwxrwx 1 root root 7 Jan 11 05:20 /usr/bin/gcc -> gcc-4.4
-rwxr-xr-x 1 root root 239528 Sep 21 2010 /usr/bin/gcc-4.3
-rwxr-xr-x 1 root root 255536 Nov 15 2010 /usr/bin/gcc-4.4

I need to build a nvidia device driver using the same version of GNU compiler as was used to compile the currently running kernel. How do I find out the version of my GNU gcc compiler that was used by upstream Linux distribution to compile and pack my binary Linux kernel?
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How do I restart nginx web server under Linux or Unix operating systems using command line options?
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Can you explain me Linux? What is Linux? Is it a kernel or an operating systems?
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Q. I’d like to keep same login screen for my school Linux desktop system lab. How do I create a custom gnome login screen or menu under CentOS or Ubuntu Linux desktop systems?
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