bc utility is surely one of the underdogs when it comes to calculations on command line. It’s a feature rich utility that has its own fan base but needs time to get comfortable with. Here, in this article, structured in form of Q&A, let’s get comfortable with bc utility by discussing both basic and advanced features of this command line calculator.
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Command Line Calculator bc – 11 Extremely Useful Examples
How to use the “tee” command
The tee command is a little tool which is very useful but often overlooked. The function of tee doesnt sound very exciting, it was created for only one purpose: write STDIN to STDOUT and a file. But tee actually can do a lot for you. Basically if you want to redirect STDOUT of a program as well as printing it to the screen, tee is the right tool to use.
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Send emails from Linux Console Using Mutt,Mail & Telnet Command
From Linux console we can send emails using Mutt,mail and Telnet Command.
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Yum Command – RPM Based Package Manager with Practical Examples
YUM Stands for Yellowdog Updater Modified. YUM is an interactive, rpm based, package manager. Yum is available in different Linux OS Like Redhat , Centos , Fedora etc.
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The Linux Command Line Beginner’s Guide (Computer Beginner’s Guides)
The Linux Command Line Beginner’s Guide (Computer Beginner’s Guides)
The Linux Command Line Beginner’s Guide gives users new to Linux an introduction to the command line environment.
In the Guide, you’ll learn how to:
-Copy, move, and delete files and directories.
-Create, delete, and manage users.
-Create, delete, and manage groups.
-Use virtual terminals.
-Use the bash shell.
-Safely use the root account with su and sudo.
-Change permissions and ownership of files and direct
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Exploring what the su command means

Do you still prefer using the command line to accomplish tasks on your Linux or UNIX based system?
For some, navigating the filesystem and firing off commands in a terminal window can be extremely productive. SSHing from one machine to another or running scripts in the background are everyday occurences for system administrators.
Some useful command with iproute2
As I wrote more than 2 years ago, the network tools (often referred as net-tools) ifconfig, netstat and route that should be familiar to anyone that has worked with a terminal, have been deprecated in favour of the iproute2 suite from some years. iproute2 is intended to replace this entire suite of legacy Unix networking tools that were previously used for the tasks of configuring network interfaces, routing tables, and managing the ARP table, but which have not been developed since 2001. You can find some examples of the usage of the iproute commands on my articles about:
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Introduction to the Command Line (Second Edition): The Fat Free Guide to Unix and Linux Commands
Introduction to the Command Line (Second Edition): The Fat Free Guide to Unix and Linux Commands
Introduction to the Command Line is a visual guide that teaches the most important Unix and Linux shell commands in a simple and straight forward manner. Command line programs covered in this book are demonstrated with typical usage to aid in the learning process and help you master the command line quickly and easily. Covers popular Unix, Linux, and BSD systems.
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Manage planned tasks on Linux with the command at
In a former article I’ve talked about the commands cron and crontab that are the standard way to schedule recurring things on a Gnu/Linux system.But sometimes you need to do one thing at a specific date and time for just one time, and for these tasks the best option is to use at, another way to use at is to run a command later when the computer won’t be busy.Or another reason could be that you want to run a command that requires a lot of time to end and you have to disconnect from that server, at could be used in this situation, but for these task i suggest to take a look at the articles on how to run commands on background and the utility screen
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Cool tips to change Ubuntu command line prompt colour
This article provides some tips and tricks on changing the colour of Ubuntu command line prompt with the help of practical examples.
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Finnix Linux Review – Command Line to the Rescue
Finnix is a live CD rescue distro, and it’s one for the CLI-junkies because it doesn’t come equipped with a desktop.
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Introduction to the Command Line (Second Edition): The Fat Free Guide to Unix and Linux Commands
Introduction to the Command Line (Second Edition): The Fat Free Guide to Unix and Linux Commands
Introduction to the Command Line is a visual guide that teaches the most important Unix and Linux shell commands in a simple and straight forward manner. Command line programs covered in this book are demonstrated with typical usage to aid in the learning process and help you master the command line quickly and easily. Covers popular Unix, Linux, and BSD systems.
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