Linux slabtop command - Display Kernel Slab Cache Information

The Linux kernel needs to allocate memory for temporary objects such as task or device structures and inodes. The caching memory allocator manages caches of these types of objects. The modern Linux kernel implements this caching memory allocator to hold the caches called the slabs. Different types of slab caches are maintained by the slab […]

July 11, 2014 | By
| Reply More

Linux chpasswd Command - Change Passwords in Bulk Mode

Creating users and managing passwords is one of the primary responsibilities of a system administrator. A good policy requires modification of passwords on regular intervals. But changing the passwords for a number of users with passwd command becomes difficult. In this article we provide a method to change the passwords in batch mode. 1. The […]

July 7, 2014 | By
| 2 Replies More

Advanced Directory Navigations Tips and Tricks in Linux

Directory navigation is one of the most basic concepts when it comes to understanding any command line system. Although it's not a very difficult thing to understand when it comes to Linux, there are certain tips and tricks that can enhance your experience, and help you do things faster. In this article, we will discuss […]

June 23, 2014 | By
| 2 Replies More

How to use Linux lsblk Command to List Block Device Information

The command lsblk (list block devices) is used to list information about all available block devices, however, it does not list information about RAM disks. Examples of block devices are hard disk, flash drives, CD-ROM e.t.c How To Install lsblk The command lsblk comes in the package util-linux-ng, now renamed util-linux. The package comes with […]

June 16, 2014 | By
| Reply More

Linux script command - A recorder inside your Terminal

When you are working on the terminal or console, you may want to record what you have done in the terminal. The recording can be used as a documentation about what happen in terminal. Let say you are working together with some Linux Administrators at the same time. Or you let someone to remote your […]

May 30, 2014 | By
| 2 Replies More

How To Use Ip Command In Linux with Examples

The linux ip command is similar to ifconfig, but more powerful and is intended to be a replacement for it. With ip you have the advantage of performing several network administration tasks with only one command. ifconfig is one of the deprecated command within net-tools that has not been maintained for many years. The functionalities of […]

May 2, 2014 | By
| 10 Replies More

Why htop Command Compete Linux top Command

The top command in Linux is used to display a real-time view of processes that are running in the system. It provides very useful information like CPU utilization, memory consumption, and more, related to every process. But, do you know there exists another command line utility 'htop' that provides more information and features when compared […]

April 28, 2014 | By
| 1 Reply More

Linux findmnt Command To Find Mounted Filesystems

The command findmnt is used to find mounted filesystems in Linux. This command will look for a particular filesystem in /etc/fstab, /etc/mtab or /proc/self/mountinfo. How To Install findmnt The command findmnt comes in the package util-linux-ng, now renamed util-linux. The package comes with several other utilities such as hwclock. To install findmnt download util-linux from […]

March 28, 2014 | By
| Reply More

Linux Commands Cheat Sheet in Black & White

Keep this linux cheat sheet on your desk printed, I am sure you will learn them quick and will be a linux expert very soon. We have added had both pdf and image (png) format of the cheat sheet. Please keep us posted if you need us to add more commands. Command are categorized 13 […]

March 21, 2014 | By
| 38 Replies More

6 Practical Usage of killall Command in Linux

Linux command line offers various commands to kill a process. For example, the 'kill' command can be used to kill a process by passing its PID as an argument, the 'pkill' command takes a pattern as an input and all the matching running processes are killed. But there exists a command 'killall', which exactly matches […]

March 14, 2014 | By
| 2 Replies More

10 ssh options for a Secure shell for Safe Data Communication

A system administrator may have managed more than 1 servers. Then those servers may located in different places. Visiting the servers one by one may not the best way to manage them. Then a remote method can be an effective way to manage them. One of the common aplication for remote activity is SSH. What […]

March 2, 2014 | By
| 1 Reply More

Some powerful options of Linux Dig command to Query DNS

As Internet grows, people are getting hard to remember IP Addresses as a unique identity for computers. Then Domain Name System (DNS) concept came. DNS will map an IP Addresses into names. Names are easier to remember. The implementation of DNS then spread globally. Offices also using DNS to map their local IP Addresses for […]

February 26, 2014 | By
| Reply More

Power of Linux wget Command to Downloand Files from Internet

Wget is the command line, non interative , free utility in Unix like Operating systems not excluding Microsoft Windows, for downloading files from the internet. Most of the web browsers require user's presence for the file download to be completed. But wget allows users to start the file retrieval and disconnect from the system. It […]

February 24, 2014 | By
| 1 Reply More

Best all Options for DNS lookup using Linux host command

TCP/IP put the computer address in a set of numbers such called IP Address. This number must be unique for every computer in the world. When the TCP/IP grows, its hard to remember every addresses which format like that. Then DNS came. DNS will translate the IP Address into a name and vice versa. […]

February 19, 2014 | By
| 1 Reply More