Trending Now

Hot

Latest Trending
Featured Trending
Staff Picks
How to Install CouchDB on Ubuntu 21.04 Linux Operating System

How to Install CouchDB on Ubuntu 21.04 Linux Operating System

The CouchDB is an open-source database system, managed by the Apache Software Foundation. It is fault-tolerant, and schema-free NoSQL database management system.   CouchDB store data in document or files with JSON data structure. Each document contains fields and...

How to Install Nginx on Ubuntu 21.04 Server

How to Install Nginx on Ubuntu 21.04 Server

Nginx is the most potent, open-source, and a high-performance Web server. It can work as a reverse proxy server also, nowadays, is used by most of the most significant websites on the internet. People pronounced “engine x” for Nginx; it is the hot choice for every...

How to Install VirtualBox on Ubuntu 21.04 Linux

How to Install VirtualBox on Ubuntu 21.04 Linux

VirtualBox is an Open Source tool, known as a cross-platform virtualization application or software. It used to run multiple operating systems or virtual machines simultaneously on a single hardware. In this VirtualBox installation tutorial, we will explain the...

Categories

Categories

Redhat
CentOS
Ubuntu
Debian
Fedora
Git
Nagios
Zabbix
Prometheus
ELK
Docker
Kubernets
Puppet
Chef
Ansible

Latest Articles from Blog

How to Install CouchDB on Ubuntu 21.04 Linux Operating System

How to Install CouchDB on Ubuntu 21.04 Linux Operating System

The CouchDB is an open-source database system, managed by the Apache Software Foundation. It is fault-tolerant, and schema-free NoSQL database management system.   CouchDB store data in document or files with JSON data structure. Each document contains fields and...

How to add swap space on Ubuntu 21.04 Operating System

How to add swap space on Ubuntu 21.04 Operating System

The swap space is a unique space on the disk that is used by the system when Physical RAM is full. When a Linux machine runout the RAM it use swap space to move inactive pages from RAM. Swap space can be created into Linux system in two ways, one we can create a...

How to Install Nginx on Ubuntu 21.04 Server

How to Install Nginx on Ubuntu 21.04 Server

Nginx is the most potent, open-source, and a high-performance Web server. It can work as a reverse proxy server also, nowadays, is used by most of the most significant websites on the internet. People pronounced “engine x” for Nginx; it is the hot choice for every...

How to Install VirtualBox on Ubuntu 21.04 Linux

How to Install VirtualBox on Ubuntu 21.04 Linux

VirtualBox is an Open Source tool, known as a cross-platform virtualization application or software. It used to run multiple operating systems or virtual machines simultaneously on a single hardware. In this VirtualBox installation tutorial, we will explain the...

Embedding other language codes or scripts in Linux bash script

There is a way to embed other language scripts or code in Bash Script. In this article, you will learn about it.Embedding other language code in Bash shell scriptWe may need to include other language scripts in Bash for certain reasons such as the fact that a certain...

Backup of files in Linux using command line

In IT or our day-to-day computer industry activities, taking backup is one of the most important activities. Previously, offices were required to keep important paper in a safe place; but if a fire breaks out, then everything is finished. In the digital world, taking...

Using awk in Linux

awk is a program that has its own programming language for performing data-processing and generating reports. The GNU version of awk is gawk. awk processes data, which can be received from a standard input, input file, or as the output of any other command or process....

sed – non-interactive stream editor uses in Linux

The stream editor (sed) is a very popular non-interactive stream editor. Normally, whenever we edit files using the vi editor, we need to open the file using the vi command, then we interact with the file to see the content of the file on screen, then edit it, and...

The basics of regular expressions in Linux script

A sequence of characters that have certain patterns of text (with meta-characters) that are searched for in a larger text file are called regular expressions:JCBsbCAvcHJvYyB8IGdyZXAgY3B1aW5mbw==In the preceding command, the grep utility will search for...

User initialization scripts in Linux

So far, we have seen different scripts that initialize the operating system prior to a user login. Once the basic operating system is initialized, the user login process starts. This process is explained in the following topics.System-wide setting scriptsIn...

System startup, inittab, and run levels

When we power on the Linux system, shell scripts are run one after another and the Linux system is initialized. These scripts start various services, daemons, databases, and applications, as well as mount discs. Even during the shutting down of the system, certain...

Running scripts or processes even if the user logs out

Sometimes, we may need our script to run even after we log out, such as when making a backup and similar activities. In this case, even if we log out, the system is powered on and running. In such situations, we can use the nohup command. The nohup command prevents...

Using traps inside a function in Linux bash script

If we use the trap command inside a function in the script, then the reassigned signal behavior will become global inside a script. We can check this effect in the following script example. Let's write shell script trap_01.sh as...

Ignoring signals in Linux for bash script

If we want the shell to ignore certain signals, then we can call the trap command followed by a pair of empty quotes as a command. Those signals will be ignored by the shell process shown by either of the following...

Using the trap command in Linux bash script

If a signal or software interrupt is generated while the script is running, then we can define what action is performed by that interrupt handler using the trap command. The trap command helps us in re-assigning the system response to a particular signal through the...

Understanding signals and traps for Linux shell script

Two types of interrupts exist in the Linux operating system: hardware interrupts and software interrupts. Software interrupts are called signals or traps. Software interrupts are used for inter-process synchronizations. Signals are used to notify us about a certain...

Creating a library of functions in Linux shell script

If we want to create our own library of functions, then we can create a script and add all the functions into this script. We can make all the functions from our script functions.sh available in the current shell by calling source or the period . command. The...

Running functions in the background in Linux bash script

We have already seen in previous chapters that to run any command in the background, we have to terminate the command using &:JCBjb21tYW5kICY=Similarly, we can make the function run in the background by appending & after the function call. This will make the...

Returning information from functions in Linux bash script

You have learned to pass command-line parameters to functions. Similarly, the function can return integers as a return value. Normally, functions return either TRUE or FALSE. In certain cases, the function can return integer values, such as 5 or 10, as well. The...

A Message From Our Editor

Dear Readers:

We are presenting you with a new journal called LinuxConcept. Our goal is to create a new forum for exchange of information on all aspects of Linux and Opensource technology. Future scope of the LinuxConcept is open to your suggestions. I would like to encourage you to submit original research articles as well as opinions, technical reports, and short communications in the Linux and Open source. The success of this portal depends on your response. I would appreciate your feedback.

Satish Kumar

Satish Kumar

Editor in Chief

Join Our Nesletter