Do you want to create a Shell script in your Linux system? This guide will take you through how to create a shell script using multiple text editors, how to add comments, and how to use Shell ...

isnt $? expanded inside the double quotes before being passed to the subshell, like any other variable? iow it's reporting the status from the previous echo command. try single quotes, or maybe i'm ...

Bash scripting is a powerful tool for automating tasks on Linux and Unix-like systems. While it's well-known for managing file and process operations, arithmetic operations, such as division, play a ...

Variables often look like $var, but they also look like $1, $*, $? and $$. Let's take a look at what all these $ values can tell you. A lot of important values are ...

# [1]: https://lore.kernel.org/r/8734tqsrt7.fsf@meer.lwn.net/ # [2]: https://lore.kernel.org/r/1708585803.600323099@f111.i.mail.ru/ # * Denylist "variable font" Noto ...

Are you currently learning Bash? Have you seen things like $0 and $EUID and wondered what they mean? Or what the difference is between $UID and $EUID? I'll cover ...

I'm a BS Software Engineering student at UBIT, University of Karachi. This repo started with the Linux and shell scripting part of my Operating Systems lab. I wanted somewhere to keep my notes, ...