ash VS zsh

When You ever thought of automating tasks, be it under MacOS or Windows, both provide relatively high-level tools of doing this (looking at You, Automator, and You, Power Automate). But MacOS and Windows also carry more low-level tooling, such as the MacOS Terminal or the Microsoft Powershell. Every modern Linux distrobution comes with, I'd guess, at least three to five different "shells", e.g, Ash, Bash, Zsh etc. A shell is a text console interpreting specific commands and executing task, ranging from basic echo 'Hello World!' to more complex for FILE in /dev/sd*; do mount $FILE /mnt/device_${FILE#/dev/sd}; done. To really gain all the unholy powers over Your Linux operating system, try to acustom Yourself to shell scripting, and a good resource to do so is the Advanced Bash-Scripting Guide. (Fun fact: The MacOS Terminal is a POSIX-compliant shell, not sure exactly which one since the default recently changed, and can be used for quite the same tasks as Linux shells.)

Ah, so it turns out ash is also a shell, the Almquist shell specifically. That’s something I learned today! The “-sh” at the end is the general pattern for the names of different shells, which is one reason they’re so similarly named. But the same advice applies!

> Now, listen. I wish I could continue here and end with “… and this is why ZSH does it that way!”

https://github.com/zsh-users/zsh/blob/47c7bc9b1493c7374f076b... has a comment about this behaviour, but no justification. I think it's just an optimization to save a little bit of time by not forking, and to avoid having the zsh process hanging around taking resources for no reason.

As a developer, the command line is one of the tools you will be using most frequently. It can be intimidating to venture into the world of CLI tooling but I can assure you it is one of the most rewarding experiences too. In this post I want to walk ya'll through my personal CLI setup. It is based on 3 technologies which I'll coin as the "Holy Trinity" of the command line: TMUX, ZSH, & Neovim.

Just like macOS, bash is included by default in most Linux distributions. Zsh on the other hand, needs to be installed manually. The installation process varies for different distributions but you can always check how to go about it for your distro on zsh website.

POSIX Shell [sh] such as bash[bash] or zsh [zsh] are used to run the commands.

this looks like the zshell implementation.

You can mass rename, using zsh zmv module. Tutorial

I use kitty, with a Nord theme, transparency, and Zsh with Oh My Zsh, using the clean theme.