Tagged: linux commands

crontab examples

Scheduling important jobs with CRONTAB : Crontab Examples

Crontab is very important utility in Linux systems & is used to set up time based job scheduling.  With the help of Crontab or cron, we can execute a command or a script to...

traceroute command in linux

ABC of using Traceroute command in Linux

Traceroute command is well known networking utility using which we can determine the number of hops between source & destination of a network packet. Not only does it show the number of hops, we...

examples of SED command

Let’s discuss some examples of SED command

Sed command or Stream Editor is one of the most utilised utility for Linux systems. It is mainly used for text substitution, find/replace operations & also other text manipulations like search, insertions deletion. We...

compare files in Linux

Simple way to compare files in Linux for differences

There are many GUI tools available to compare files & folders to check for any changes or dissimilarities, but it does not mean that one can’t perform comparison or diff using CLI on a...

ss command examples

Identify network issues :- Learn to use SS command (with examples)

SS command is used to get various network/socket connections related information from a Linux system. Previously we had used netstat command to perform the same operations but it has been long deprecated & was...

screen command with examples

Learn to use Screen command (with examples)

Screen command is a very important command that provides the ability to launch & use multiple shell sessions from a single ssh session.  When a process is started with ‘screen’, we can detach that...

du & df commands

Use of du & df commands (with examples)

In this article I will discuss du & df commands. Both du & df commands are important utilities of Linux system & shows disk usage of Linux filesystem. Here we will share usage of...

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...