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115 lines
4.2 KiB
115 lines
4.2 KiB
11 months ago
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta http-equiv="content-type" content="text/html; charset=utf-8">
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<!-- Enable responsiveness on mobile devices-->
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1, viewport-fit=cover">
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<title>Julio Biason .Me 4.3</title>
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<!-- CSS -->
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<link rel="stylesheet" href="https://blog.juliobiason.me/print.css" media="print">
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<link rel="stylesheet" href="https://blog.juliobiason.me/poole.css">
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<link rel="stylesheet" href="https://blog.juliobiason.me/hyde.css">
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<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=PT+Sans:400,400italic,700|Abril+Fatface">
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</head>
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<body class=" ">
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<div class="sidebar">
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<div class="container sidebar-sticky">
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<div class="sidebar-about">
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<a href="https://blog.juliobiason.me"><h1>Julio Biason .Me 4.3</h1></a>
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<p class="lead">Old school dev living in a 2.0 dev world</p>
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</div>
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<ul class="sidebar-nav">
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<li class="sidebar-nav-item"><a href="/">English</a></li>
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<li class="sidebar-nav-item"><a href="/pt">Português</a></li>
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<li class="sidebar-nav-item"><a href="/tags">Tags (EN)</a></li>
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<li class="sidebar-nav-item"><a href="/pt/tags">Tags (PT)</a></li>
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</ul>
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</div>
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</div>
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<div class="content container">
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<div class="post">
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<h1 class="post-title">Things I Learnt The Hard Way - Command Line Options Are Weird, But Helpful</h1>
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<span class="post-date">
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2019-07-15
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<a href="https://blog.juliobiason.me/tags/books/">#books</a>
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<a href="https://blog.juliobiason.me/tags/things-i-learnt/">#things i learnt</a>
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<a href="https://blog.juliobiason.me/tags/configuration/">#configuration</a>
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<a href="https://blog.juliobiason.me/tags/command-line-options/">#command line options</a>
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<a href="https://blog.juliobiason.me/tags/cli/">#cli</a>
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</span>
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<p>In this day and age, when everything has a graphical interface, does it still
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makes sense to add command line options to your application? In fact, it does.</p>
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<span id="continue-reading"></span>
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<p>When I mentioned the configuration file, you may have thought about using
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adding a default path for it and using the same file over and over.</p>
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<p>Well, that's not wrong, but what if you want to use a different configuration?
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Would you keep moving the original configuration file to another place, moving
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your configuration back and keep this back and forth? Keep both versions and
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just use a <a href="https://en.wikipedia.org/wiki/Symbolic_link">symbolic link</a> with
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the configuration filename pointing to the one you want?</p>
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<p>Why not add a command line option in which the user can select which
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configuration file should be loaded?</p>
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<p>This would make their life <em>and yours</em> easy.</p>
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<p>Also, be aware that, today, there may be libraries to handle command line in
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every language, which will help you build a good command line interface, along
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with standardizing it to have the same interface as other applications.</p>
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<div>
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<div style="float:left">
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<< <a href="/books/things-i-learnt/config-file">The Config File Is Friend</a>
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</div>
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<div style="float:right">
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<a href="/books/things-i-learnt/application-composition">Not Just Function Composition, But Application Composition</a> >>
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</div>
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</div>
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</div>
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</div>
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</body>
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</html>
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