What Is the Terminal Actually Useful For in Linux?
I've been using Linux as my daily operating system for around two months and have really enjoyed it. My laptop runs cooler, I can install the software I…
shell
Can someone clearly explain terminals, shells, editors, and development environments?
I'm a beginner trying to understand basic programming tools and terminology. I keep seeing terms like terminal, shell, editor, environment, and IDE, but explanations online often blur them…
Can someone clearly explain terminals, shells, editors, and development environments?
I'm a beginner trying to understand common programming terms such as terminal, shell, editor, and environment. Online explanations often seem confusing or assume background knowledge. Could someone explain…
How to Use a Shell Variable in a For Loop?
I'm trying to use a for loop in Bash to iterate over a range defined by a variable. When I run this loop with braces: ``` for i…
Why Does PROMPT_COMMAND Disappear in a Subshell?
I've set my PROMPT_COMMAND in my .bash_profile using the command `export PROMPT_COMMAND="echo hello"`. It works just fine in a login shell, but when I start a subshell by…
Understanding Environment Variables in Bash
I'm diving into bash scripting and learning on my own, but I'm getting a bit confused about environment variables. From what I understand, environment variables are essentially variables…
Help Me Understand Environment Variables in Bash
I'm diving into Bash scripting and learning from resources like Linux Journey, but I'm a bit stuck on the concept of environment variables. As I understand it, environment…
Understanding Shells, TTYs, PTYs, Terminal Emulators, and Virtual Terminals
I've been using Linux for a few years now and want to clarify some concepts I've stumbled upon. What exactly are the differences between a shell, TTY (teletype),…
How can I programmatically stop a running script from another script?
I'm trying to figure out how to kill a script that automatically starts at boot so that I can replace it with another script later using cron. Specifically,…
Can I Make Bash Work Like Zsh?
I'm interested in sticking with Bash, but I'm wondering if there are ways to enhance its functionality to mimic some Zsh features. First, can I set up Bash…
How to Exit a Pipeline Early When the First Command Fails?
I'm working on a Bash script where I have a pipeline like `cmd1 | cmd2 | cmd3`. I want `cmd2` and `cmd3` to only run if `cmd1` is…
Can I Make Command Mode Default in Bash's Vi Mode?
Hey everyone, I've been using Bash's vi mode for a couple of decades now, and I've always wondered: is there a way to set command mode as the…
How can I make zsh my default shell on Debian 12?
I recently installed zsh on my Debian 12 system and tried setting it as my default shell using the command `chsh -s $(which zsh)`. After logging out and…
How can I create a Bash function to search for loaded functions in my environment?
I'm looking to write a Bash function that helps me quickly search for and match functions loaded in my current environment. I want it to display any functions…