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Archive : Linux Commands

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7 ‘dmesg’ Commands for Troubleshooting and Collecting Information of Linux Systems

7 ‘dmesg’ Commands for Troubleshooting and Collecting Information of Linux Systems
The ‘dmesg‘ command displays the messages from the kernel ring buffer. A system passes multiple runlevel from where we can get lot of information like system architecture, cpu, attached device, RAM etc. When computer boots up, a kernel (core of an operating system) is loaded into memory. During that period number of messages are being displayed where we can see hardware devices detected by kernel. dmesg Command Examples The messages...
Filed in: Linux Commands

5 Best Command Line Archive Tools for Linux – Part 1

5 Best Command Line Archive Tools for Linux – Part 1
In our day-to-day life we come across, archived files on the platforms of all kind be it Windows, Mac or Linux. There are several Application program available for all of the platforms to create archive files as well as uncompress them. When it comes to work on Linux Platform, we need to deal with archived files very frequently. Linux Command Line Archive Tools Here in this article we will be discussing archive tools available on standard Linux...
Filed in: Linux Commands

20 Command Line Tools to Monitor Linux Performance

20 Command Line Tools to Monitor Linux Performance
It’s really very tough job for every System or Network administrator to monitor and debug Linux System Performance problems every day. After being a Linux Administrator for 5 years in IT industry, I came to know that how hard is to monitor and keep systems up and running. For this reason, we’ve compiled the list of Top 20 frequently used command line monitoring tools that might be useful for every Linux/Unix System Administrator. These...

Manage Files Effectively using head, tail and cat Commands in Linux

Manage Files Effectively using head, tail and cat Commands in Linux
There are several commands and programs provided by Linux for viewing the contents of file. Working with files is one of the daunting task, most of the computer users be it newbie, regular user, advanced user, developer, admin, etc performs. Working with files effectively and efficiently is an art. Manage Files in Linux Today, in this article we will be discussing the most popular commands called head, tail and cat, most of us already aware of...
Filed in: Linux Commands

Fun in Linux Terminal – Play with Word and Character Counts

Fun in Linux Terminal – Play with Word and Character Counts
Linux command line has a lot of fun around itself and many tedious task can be performed very easily yet with perfection. Playing with words and characters, their frequency in a text file, etc is what we are going to see in this article. The only command that comes to our mind, for tweaking Linux command line to manipulate words and characters from a text file is wc command. Fun with Word and Letter Counts in Shell A ‘wc‘ command which...
Filed in: Linux Commands

The Complete Guide to “useradd” Command in Linux – 15 Practical Examples

The Complete Guide to “useradd” Command in Linux – 15 Practical Examples
We all are aware about the most popular command called ‘useradd‘ or ‘adduser‘ in Linux. There are times when a Linux System Administrator asked to create user accounts on Linux  with some specific properties, limitations or comments. In Linux, a ‘useradd‘ command is a low-level utility that is used for adding/creating user accounts in Linux and other Unix-like operating systems. The ‘adduser‘ is much...
Filed in: Linux Commands

Difference Between su and sudo and How to Configure sudo in Linux

Difference Between su and sudo and How to Configure sudo in Linux
Linux System is much secured than any of its counterpart. One of the way to implement security in Linux is the user management policy and user permission. normal users are not authorized to perform any system operations. If a normal user needs to perform any system wide changes he needs to use either ‘su‘ or ‘sudo‘ command. Linux: su v/s sudo NOTE – This article is more applicable to Ubuntu based distributions, but also...
Filed in: Linux Commands

11 Linux Kernel Boot-time Parameters Explained

11 Linux Kernel Boot-time Parameters Explained
Linux booting is a complex process as compared to booting processes in any other distribution. The Linux Kernel accepts a lot of parameters at booting, in command-line. This command-Line boot time parameter passes several kind of information to Linux Kernel at System Startup. Kernel Boot Time Parameters Booting a Linux kernel directly from BIOS using the kernel on cd (/dev/cdrom), don’t allow assigning parameter directly. For this we need a...
Filed in: Linux Commands
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