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Linux: Show The Groups a User Is In

How do I find out what groups I belong to under Linux operating systems?
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HowTo: Linux List Disk Partitions Command

How do I list all hard disk partitions under Linux operating systems?
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Linux / Unix: Bash Find Matching All Dot Files

A dot-file is generally any file whose name begins with a full stop. In Linux or Unix like operating system it is also called as hidden file. How do I list all dot files in my home directory?
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RHEL / CentOS Linux: Mount and Access NTFS Partition

How to enable NTFS support on CentOS Linux version 5 or 6? How do I mount ntfs partition under RHEL 5 or 6?
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OpenBSD: Install Firefox Web Browser

How do I install Mozilla Firefox which is a free and open source web browser under OpenBSD operating systems?
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Linux: Dell Server / Desktop / Laptop Find Out Service Tag Command

I need to find out the service tag of my Dell server or computer. How do I find out my nique five- to seven- digit alphanumeric (letter and number) service tag code without looking on the back of the system or opening door of bezel?
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Linux Deleting Firewall Rules

I would like to to delete my iptables based firewall rules under Linux. How do I delete rules individually or all at once under CentOS or Fedora Linux or RHEL based servers?
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Mount CD-ROM in Linux

How do I mount a CD-ROM or DVD drive on a Linux operating system using command line bash shell based options?
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Install Iptables Firewall in Redhat / CentOS Linux

How do I install iptables under Redhat (RHEL) or CentOS or Fedora Linux operating systems?
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HowTo Install firefox-4.0.tar.bz2 in Linux

How do I install latest Firefox version 4.0 in Linux operating systems?
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