Category: Linux
Learn how to – Backup your Application Settings on macOS|Linux using mackup
Learn how to – Backup your Application Settings on macOS|Linux using mackup. How would you feel if you would configure your new laptop with a few commands and you get an exact copy of settings that you had in your previous computer? The hassle of setting up your computer every time you have a new …
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Learn how to – How to Add OpenStack Compute Flavors using CLI
Learn how to – How to Add OpenStack Compute Flavors using CLI. How to add flavors to openstack using cli: This is a continuation of getting started with Openstack compute platform series. Earlier in the series we looked at Adding images to Openstack Glance. What are Openstack flavors? In OpenStack, a flavor defines the compute, …
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Learn how to – Rocky Linux 8 vs CentOS Stream 8 vs RHEL 8 vs Oracle Linux 8 vs AlmaLinux 8
Learn how to – Rocky Linux 8 vs CentOS Stream 8 vs RHEL 8 vs Oracle Linux 8 vs AlmaLinux 8. The future of Linux has lived up to the expectations that most people have when they begin a project, a relationship, career or anything that will be long-term. Linux has had a stellar future …
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Learn how to – Getting Started With Secure HAProxy on Linux
Learn how to – Getting Started With Secure HAProxy on Linux. In this getting started with secure HAProxy on Linux blog post, I’ll walk you through important concepts you need to start working with HAProxy. Load Balancing is a common argot for Webmasters and System Administrators managing huge-traffic websites. Since HAProxy is the de-facto standard …
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Learn how to – Install wkhtmltopdf & wkhtmltoimage on Rocky Linux|AlmaLinux 8
Learn how to – Install wkhtmltopdf & wkhtmltoimage on Rocky Linux|AlmaLinux 8. In this article we shall perform the installation of wkhtmltopdf & wkhtmltoimage on Rocky Linux 8 |AlmaLinux 8 operating system. The wkhtmltopdf and wkhtmltoimage are command line tools created to help with rendering of HTML into PDF and various image formats using the …
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What is a Process?
In this article we will discuss what is process and what are its states. What is a Process? Process is a an instance of a Program. Advertisements A Program is an executable file. Whenever we execute a program, then its loaded into memory by OS and a Process is created to represent this running instance. …
Process Identification in Linux – Tutorial & Example
In this article we will discuss, how to differentiate and identify each process in linux. Process ID Each process in Linux has a unique id and has a parent.  We can get the process id of a running process and its parent’s process id using following functions, Advertisements pid_t getpid() pid_t getppid() File to be …
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What is a Zombie Process ?
In this article we will discuss what is a Zombie Process. Zombie Process In Linux, when a process exits then its not directly removed from the process table. OS expects the parent of this terminated process to wait for it and read its exit status. If parent process don’t wait for this terminated process then Process …
Creating a new process using fork() System call
In this article we will discuss how to create a new process using fork() system call. fork() System Call A Process can create a new child process using fork() system call. Advertisements This new child process created through fork() call will have same memory image as of parent process i.e. it will be duplicate of …
C++ : How to pass class member function to pthread_create() ?
POSIX Library provides a function pthread_create() to create threads i.e. #include <pthread.h> int pthread_create(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine) (void *), void *arg); It accepts a function pointer as startup routine. This function accepts void * as argument and returns void *. In previous article we discussed how to use this API with global functions …
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