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How To CentOS / RHEL 7 Install Gnome Desktop Using Yum

I installed minimal CentOS Linux 7.x on my laptop. How can I install Gnome desktop GUI on a RHEL (Red Hat) 7 or CentOS Linux 7 system using command line option?
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Debian / Ubuntu Linux: Install GTK 2+ Development Environment

I recently installed Debian version 6.x on my Mac book pro. I wanted to write code in C/Gnome GTK and develop apps for fun and profit. How do I install C and Gnome gtk development environment under Debian or Ubuntu Linux operating systems?
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Linux / Unix: Unicode and HTML Characters Lookup By Name or Number

I need to replace special characters with equivalent hexadecimal unicode under Linux or Unix like operating system. How do I list or find out unicodes for given characters?
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Linux Gnome Desktop Windows Decoration Disappeared

Nautilus is the file manager for the GNOME desktop. How do I open Nautilus from the Linux or Unix shell prompt to open files and directories on a Linux or Unix based desktop?
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Gnome Network Manager VPN Tab Disabled ( Greyed out )

Problem is that every time I click something I get annoying sound from computer speaker. So I tried to disable or set new sound theme by visiting System > Preferences > Sound. The Sound Theme tab is greyed out. Sound itself is not working and I can only get annoying sound. How do I fix this problem under Debian or Ubuntu Linux gnome desktop system?
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Ubuntu Linux: Show Gnome Version

How do I see my gnome desktop version using command line options?
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CentOS / RHEL Linux: Remove GDM

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