Recently I was working on a shell script and I saw a significant difference in how bash special variable $ and BASHPID behaves. Every process running in Linux will be assigned with a process ID and that is how the
The main focus of this article is to clearly understand what happens when you run the script vs source the script in bash. First, we will clearly understand how the program is submitted when you call the script in different
This article is all about how to read files in bash scripts using a while loop. Reading a file is a common operation in programming. You should be familiar with different methods and which method is more efficient to use.
In bash for, while, and until are three loop constructs. While each loop differs syntactically and functionally their purpose is to iterate over a block of code when a certain expression is evaluated. Until loop is used to execute a
In this article, we will take a look at how to use a break and continue in bash scripts. In bash, we have three main loop constructs (for, while, until). Break and continue statements are bash builtin and used to
Shell scripting is the easiest form of programming you can learn/do in Linux. More so, it is a required skill for system administration for automating tasks, developing new simple utilities/tools just to mention but a few. In this article, we
Bash (Bourne Again Shell) is undoubtedly the most popular Linux shell out there, no wonder it is the default shell on many Linux distributions. One of its most charming features is the built-in “auto-completion” support. Sometimes referred to as TAB
A powerful aspect of Unix/Linux shell programs such as bash, is their amazing support for common programming constructs that enable you to make decisions, execute commands repeatedly, create new functions, and so much more. You can write commands in a
In this article, we will show you a simple way to configure a custom header for all newly created bash scripts in Vim editor. This means that every time you open a new .sh file using vi/vim editor, the custom
jm-shell is a free open source, small, highly informative and customized Bash shell, that gives you a great wealth of information about your shell activity as well as certain useful system information such as system load average, battery status of
In this article, we will share a number of Bash command-line shortcuts useful for any Linux user. These shortcuts allow you to easily and in a fast manner, perform certain activities such as accessing and running previously executed commands, opening
Bash-it is a bundle of community Bash commands and scripts for Bash 3.2+, which comes with autocompletion, themes, aliases, custom functions, and more. It offers a useful framework for developing, maintaining and using shell scripts and custom commands for your
direnv is a nifty open-source extension for your shell on a UNIX operating system such as Linux and macOS. It is compiled into a single static executable and supports shells such as bash, zsh, tcsh, and fish. The main purpose
Marcel is a new shell. It is similar to traditional shells in many ways, but it does a few things differently: Piping: All shells use pipes to send a text from the output of one command to the input of