Tagged: linux commands

user & group management

User & Group management : Complete Beginner’s Guide

One of the major work of a System Administrator is User & Group Management. We have to create new users & groups, delete old ones, providing users access to a group or folder etc etc....

wget command

Learn to use Wget command with 12 examples

Every now & then we have to download files from internet, its easy id you are using GUI but CLI it can be a bit difficult. WGET command makes it easy for us to...

offline yum

Creating an Offline YUM repository for LAN

In our earlier tutorial, we discussed “How we can create our own yum repository with ISO image & by mirroring an online yum repository”. Creating your own yum repository is a good idea but...

fsck command with examples

Check Linux filesystem for errors: FSCK command with examples

FSCK is a very important Linux/Unix utility, it is used to check & repair the errors in the file system. It is similar to ‘chkdsk’ utility in Windows operating systems. It is available for...

scp & rsync commands

Files transfer using scp & rsync commands

Hello Linux-fanatics, in this tutorial we will discuss how to transfer files among system using scp & rsync with some examples. (also read tutorial on “Cloning disks using dd & cat commands“). But firstly let’s...

SELinux

Beginner’s guide to SELinux

Hello Linux-fanatics, in this tutorial we will learn to use SELinux. Its been my experience that most Sys-Admins consider it a hassle & ends up disabling it. It is a great tool to help...

cloning disks

Cloning Disks using dd & cat commands for Linux systems

It always wise for a System Administrator to be prepared for the worst situation & having a backup/clones of servers, when such a day arrives will certainly make your job & life easy. Though...

regex basics

Bash Scripting: Learn to use REGEX (Basics)

Regular expressions or regex or regexp are basically strings of character that define a search pattern, they can be used for performing ‘Search’ or ‘Search & Replace’ operations as well as can be used...

grep command with examples

Learning GREP command with examples

Grep is a very important & powerful Linux commands. It stands for ‘Global Regular Expression Print’ & is used for matching & printing a search pattern or a regular expression from a single or...

bash tips tricks

Important BASH tips tricks for Beginners

Hello Linux-Fanatics, this post is dedicated to those users who are just getting started with their Linux Journey. I am sharing some Bash tips tricks which will make you more familiar with BASH &...

date & time

Playing with Date & Time in RHEL/CentOS

In this tutorial, we are going to discuss how we can view or modify date & time values in our RHEL/CentOS 7 servers. We are going to discuss 3 commands which we can use...

netstat with examples

NETSTAT Command: Learn to use netstat with examples

Netstat is a command line utility that tells us about all the tcp/udp/unix socket connections on our system. It provides list of all connections that are currently established or are in waiting state. This...

grep command with examples

Learn to use GREP command with examples

Grep is a very important & powerful Linux commands. It stands for ‘Global Regular Expression Print’ & is used for matching & printing a search pattern or a regular expression from a single or...

secure grub

How to secure Grub in Centos/RHEL 5/6/7 & 7.2

Hello Linux-fanatics, in this tutorial we will learn to secure Grub. GRUB or Grand Unified Bootloader, is the default boot-loader for most of the Linux distributions. It provides a user the choice to boot one of...

installing VLC

Installing VLC & running it as root on CentOS/RHEL

Hello Linux-fanatics, every now & then we must have used our RHEL/CentOS machines to play some Videos. Some of the video formats work out of the box in the default video player, called “VIDEOS”...

change hostname

5 ways to add or change hostname in RHEL/CentOS 7

Hostname for a system is like an identity for that system, it not only makes system management easy but we can also use hostname to access a system over LAN. In this tutorial, we...