Blogwalter's blog2026-01-23T00:00:00+00:00https://elyrisai.xyz/blogs/feed.xmlCustomizing The Bash Shell2025-11-28T00:00:00+00:002026-01-23T00:00:00+00:00https://elyrisai.xyz/blogs/customizing-bash-shell/<h3 id="before-anything">Before Anything<a class="zola-anchor" href="#before-anything" aria-label="Anchor link for: before-anything" style="visibility: hidden;"></a>
</h3>
<p><strong>BASH - Bourne Again Shell</strong></p>
<p>Bash used for General-purpose programming and scripting and also a 'Shell' (This mixed here). Most people now just use Zsh or Fish. But I think Bash is actually better than any other shell. Because, its stability and broad compatibility. Also the general command-line use across most Unix systems.</p>
<p><strong>Tools mentioned:</strong> ble.sh, Starship, fzf</p>
<ul>
<li>ble.sh — replaces Readline with syntax highlighting, autosuggestions, vim/emacs modes, better completion</li>
<li>fzf — fuzzy finder that revolutionizes history search, file navigation, git operations</li>
<li>Starship — cross-shell prompt that is minimal, fast, git-aware, and highly customizable</li>
</ul>
<blockquote>
<p><strong>Install these first</strong></p>
</blockquote>
<h3 id="configure-bash-first">Configure bash first<a class="zola-anchor" href="#configure-bash-first" aria-label="Anchor link for: configure-bash-first" style="visibility: hidden;"></a>
</h3>
<p>You can enable Vi/Vim mode in your shell by adding <code>set -o vi</code>. And use the shell like Vim (I mean the keys).
First thing you need to do after installing fzf and Starship is setting up paths:
add this</p>
<pre class="giallo z-code"><code data-lang="shellscript"><span class="giallo-l"><span class="z-support">eval</span><span class="z-punctuation z-definition z-string"> "</span><span class="z-string">$(</span><span class="z-entity z-name">fzf</span><span class="z-constant"> -</span><span class="z-constant">-bash</span><span class="z-string">)</span><span class="z-punctuation z-definition z-string">"</span></span>
<span class="giallo-l"><span class="z-support">eval</span><span class="z-punctuation z-definition z-string"> "</span><span class="z-string">$(</span><span class="z-entity z-name">starship</span><span class="z-string"> init</span><span class="z-string"> bash</span><span class="z-string">)</span><span class="z-punctuation z-definition z-string">"</span></span></code></pre>
<p>You don't have to customize ble.sh and fzf for basic use, for customizing Starship, you can find official <a rel="nofollow noreferrer external" href="https://starship.rs/presets/">presets here</a></p>
<p>You can bind keys for shortcuts, add aliases and create function.
Here's is an example:</p>
<pre class="giallo z-code"><code data-lang="shellscript"><span class="giallo-l"><span class="z-punctuation z-definition z-comment">#</span><span class="z-comment"> create function:</span></span>
<span class="giallo-l"><span class="z-entity z-name">open_file</span><span>(</span><span>)</span><span> {</span></span>
<span class="giallo-l"><span class="z-storage"> local</span><span class="z-variable z-other"> file</span></span>
<span class="giallo-l"><span class="z-variable z-other"> file</span><span class="z-keyword">=</span><span>$(</span><span class="z-entity z-name">fzf</span><span class="z-constant"> -</span><span class="z-constant">-preview</span><span class="z-punctuation z-definition z-string"> '</span><span class="z-string">bat --style=numbers --color=always {}</span><span class="z-punctuation z-definition z-string">'</span><span class="z-constant"> -</span><span class="z-constant">-border</span><span class="z-constant"> -</span><span class="z-constant">-select-1</span><span class="z-constant"> -</span><span class="z-constant">-exit-0</span><span>)</span></span>
<span class="giallo-l"><span class="z-keyword"> if</span><span> [[</span><span class="z-keyword"> -n</span><span class="z-punctuation z-definition z-string"> "</span><span class="z-variable z-other">$</span><span class="z-variable z-other">file</span><span class="z-punctuation z-definition z-string">"</span><span> ]]</span><span>;</span><span class="z-keyword"> then</span></span>
<span class="giallo-l"><span class="z-entity z-name"> nvim</span><span class="z-punctuation z-definition z-string"> "</span><span class="z-variable z-other">$</span><span class="z-variable z-other">file</span><span class="z-punctuation z-definition z-string">"</span></span>
<span class="giallo-l"><span class="z-keyword"> fi</span></span>
<span class="giallo-l"><span>}</span></span>
<span class="giallo-l"></span>
<span class="giallo-l"></span>
<span class="giallo-l"><span class="z-punctuation z-definition z-comment">#</span><span class="z-comment"> Bind key: run the function</span></span>
<span class="giallo-l"><span class="z-entity z-name">bind</span><span class="z-punctuation z-definition z-string"> '</span><span class="z-string">"\C-f":"open_file\n"</span><span class="z-punctuation z-definition z-string">'</span></span>
<span class="giallo-l"></span>
<span class="giallo-l"><span class="z-punctuation z-definition z-comment">#</span><span class="z-comment">Alias</span></span>
<span class="giallo-l"><span class="z-support">alias</span><span class="z-string"> kiss</span><span class="z-string"> =</span><span class="z-punctuation z-definition z-string"> '</span><span class="z-string">mkdir -p</span><span class="z-punctuation z-definition z-string">'</span><span class="z-punctuation z-definition z-comment"> #</span><span class="z-comment"> since touch used to create new file!</span></span></code></pre>
<p>Just like that, when you enter Ctrl+f, it runs the function (in this function it will open a selected file with fzf).</p>
<h3 id="some-different-and-pros">Some different (and pros)<a class="zola-anchor" href="#some-different-and-pros" aria-label="Anchor link for: some-different-and-pros" style="visibility: hidden;"></a>
</h3>
<p>Bash is good enough for everything, default everywhere, POSIX + useful extras.The main differences show up when scripts grow or need real structure.
Bash's error handling is clunky (fighting with <code>$?</code>, <code>set -euo pipefail</code>, and traps), data structures are weak (arrays yes, but proper dicts only since
Bash 4+, and no easy sets/objects), and anything beyond integer math or complex JSON parsing forces you into awk/jq/bc hacks that hurt readability fast.</p>
<pre class="giallo z-code"><code data-lang="shellscript"><span class="giallo-l"><span class="z-punctuation z-definition z-comment">#</span><span class="z-comment"> Example</span></span>
<span class="giallo-l"><span class="z-support">set</span><span class="z-constant"> -</span><span class="z-constant">euo</span><span class="z-string"> pipefail</span><span class="z-punctuation z-definition z-comment"> #</span><span class="z-comment"> strict mode</span></span>
<span class="giallo-l"><span class="z-support">trap</span><span class="z-punctuation z-definition z-string"> '</span><span class="z-string">echo "Error on line $LINENO"</span><span class="z-punctuation z-definition z-string">'</span><span class="z-string"> ERR</span></span></code></pre>
<p>The key pros of Bash shine brightest for fast, lightweight, system-level automation.</p>
<p><strong>Shell</strong>: While zsh and fish feel snappier out-of-the-box with built-in autosuggestions and nicer syntax, Bash remains king for pure compatibility. Every Linux distro, container , and cloud VM has Bash — no surprises when your script runs on a minimal server. Zsh scripts are mostly portable, but fish syntax breaks POSIX/Bash compatibility hard, so you end up rewriting things anyway. If you're scripting a lot (cron jobs, Dockerfiles), Bash's "write once, run everywhere" wins. Interactive use? That's where ble.sh + fzf + Starship close the gap — you get highlighting/suggestions + fuzzy finding, but stay in Bash. Also, 'Oh My Bash' for plugins.</p>
<h3 id="bash-scripting-guide">Bash Scripting Guide<a class="zola-anchor" href="#bash-scripting-guide" aria-label="Anchor link for: bash-scripting-guide" style="visibility: hidden;"></a>
</h3>
<p><a rel="nofollow noreferrer external" href="https://mywiki.wooledge.org/BashGuide">Bash Guide</a> :respected community resources with in-depth Bash Guide, FAQ, Pitfalls, and best practices.
You can find more documentation on the internet. <a rel="nofollow noreferrer external" href="https://www.reddit.com/r/bash/comments/1niobmh/documentation_for_bash/">see this reddit post</a></p>
World, I'm Here Whether You Like It or Not2025-10-28T00:00:00+00:002025-10-28T00:00:00+00:00https://elyrisai.xyz/blogs/hello-world/<blockquote>
<p>Hello World. <em>(October 28, 2025)</em></p>
</blockquote>
<h3 id="uhmm">Uhmm......<a class="zola-anchor" href="#uhmm" aria-label="Anchor link for: uhmm" style="visibility: hidden;"></a>
</h3>
<p>I never post anything on the internet. This my small piece of the web.. (uhm, Welcome)</p>
<p>So, I want to share that 'things are not going well (now)', before that I want to say something about myself.
I'm interested in Programming (I found it when my friend showed me a simple calculator program on his android phone,
Sometimes, I feel lucky I'm trying to program) and I want to stick with it. guess what? I've been on this awesome Programming
journey for the past 3 months after I got my second computer. I enjoyed mostly. But after few days, I always
having the thought "I'll do it later!", And that's why I'm now frustrated. (I invested quite more time in Vim and Linux).
Nothing changes (actually), I just jumped around programming languages (Python, JavaScript, ... ). But the goal was different "Web development",
Now I hate it. Not because it is hard or something like that. I just didn't continue, I believe, <strong>Programming is not
just learning/knowing programming language(s)</strong>. But my progress is just didn't work out.</p>
<p>I'm learning 'Rust' (<del>What?</del>) last few days. This is might be strange. I found Rustlings (Rust errors solve, more like a game) enjoyable.
Also, Their documentation is solid. So, I started sucking around Rust. I'm pretty sure I'll pause this (too).
I just change my idea/(x) so rapidly. Maybe in 3-4 months in another level (in negative direction!).</p>
<h3 id="what-i-m-hoping">What I'm Hoping<a class="zola-anchor" href="#what-i-m-hoping" aria-label="Anchor link for: what-i-m-hoping" style="visibility: hidden;"></a>
</h3>
<p>I do want to get better at coding in the real world, contribute to projects I like. The goal is very simple learn, contribute, and see where it takes me.</p>
<h3 id="why-this-now">Why this now?<a class="zola-anchor" href="#why-this-now" aria-label="Anchor link for: why-this-now" style="visibility: hidden;"></a>
</h3>
<blockquote>
<p>This is my first blog post you are reading right now and i think, there will be more to come. I'm focusing on core programming.
Here to share.. maybe some, <strong>programming related</strong> blogposts and something weird I want to write. In addition, I want to write
about the topics I’m passionate about, like tools, search, recommendations, and situations.
{: .prompt-tip }</p>
</blockquote>
<h3 id="creating-this-site">Creating this site<a class="zola-anchor" href="#creating-this-site" aria-label="Anchor link for: creating-this-site" style="visibility: hidden;"></a>
</h3>
<p>I build this site with Hugo yesterday. Hugo is a static site builder. So, I didn't have to write any html or CSS, just added a Markdown and you see..</p>
<p>edit(feb-26): I recreated this webpage with Jekyll. (you know, changes!)
Almost same as Hugo.</p>
<h3 id="conclusion">Conclusion<a class="zola-anchor" href="#conclusion" aria-label="Anchor link for: conclusion" style="visibility: hidden;"></a>
</h3>
<p>This post is largely a statement of intent (and a little document), my unstructured thought, it looks creepy but, just had to take the first step of writing my blog.
From here on out I plan to focus on 'be more focused and technical' and dive into the <strong>Open Source Ocean</strong>. At last, I want to say 'Hello World'.</p>
<p>That’s all for now.</p>