In order to understand what the libraries of files with the extensions .a, .so and .la actually mean, we first must be aware of the concept of libraries in Linux. A Linux in its very simple terms is a collection of pre-compiled pieces of code which are known as functions. ... Read More

ProcessA process is the execution of a program that allows you to perform the appropriate actions specified in a program. It can be defined as an execution unit where a program runs. The OS helps you to create, schedule, and terminate the processes which are used by the CPU. The ... Read More

There are multiple ways with which we can check the maximum number of threads that Linux has allocated to a particular process.Approach 1cat /proc/sys/kernel/threads-maxOutput61741We can also increase the default value set by linux with the help of the command shown below −echo 123456789 > /proc/sys/kernel/threads-maxwhere 123456789 = Number of threadsApproach ... Read More

It is one of the commonly known errors that the new users can get when trying to start Docker on a daemon process. This error usually comes up when you try to run the following command in your terminaldocker-compose buildThe docker-compose in the above command is a tool that is ... Read More

Long story short, Linux’s bash doesn’t have goto statements and no information about the control structures exists in the official documentation. It should also be noted that we can make use of the break and continue statement to achieve the same behaviour that goto statement provides us.A simple behaviour of ... Read More

In order to create a crontab job to run every 30 minutes we first need to explore and understand what a crontab job is.A crontab is nothing but a list of commands that we can run during a cron job. A cron job is a utility that schedules automatic execution ... Read More

Setting a variable to a single line in bash and then printing it to console is a fairly easy process, but if we want to write multiple line strings using Bash then we have to consider different approaches.In total there are three approaches that we can make use of, all ... Read More

In Python, we have the subprocess module that allows us to work with additional processes and makes things easier for us as a developer. While there are other modules available to us that also provide similar functionalities as the subprocess module like the os.spawn(), os.system(), os.popen() and much more, but ... Read More

Let’s consider a case where we have two directories, say, d1 and d2 and both these directories contain some files, which may be the same or different. Now we want to make use of the sed command to replace a particular text that might be present in some of the ... Read More

In order to be able to grep a string that has a dot inside it, we must first understand what a grep command is and how to use it on Linux.The grep command in Linux is used to filter searches in a file for a particular pattern of characters. It is ... Read More