The latest articles on DEV Community by Aaron Storrer (@astorrer). https://dev.to/astorrer https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F751050%2F19e71070-00c8-4fcb-84b4-157e98feb1ff.png https://dev.to/astorrer en Aaron Storrer Wed, 22 Dec 2021 16:25:40 +0000 https://dev.to/astorrer/case-sensitivity-in-wsl-watch-out-5c5a https://dev.to/astorrer/case-sensitivity-in-wsl-watch-out-5c5a <p>I recently encountered an error when deploying some new updates to a Rails Application. The error? The application could not find a missing .xml template in production, but it could on the development workstations. Even stranger - version control couldn't find any differences. <br> Now, this is elementary to those using Linux to develop their software - file names and their extensions are case sensitive. When using Ubuntu under Windows subsystem for Linux, try the following in the console:<br> Make a directory and navigate to it.<br> <code>mkdir test &amp;&amp; cd test</code><br> Create a file.<br> <code>touch test.XML</code><br> Now here is the fun part. Watch what happens when you run...<br> <code>mv test.XML test.xml</code><br> In WSL, this is what you get:<br> <code>mv: 'test.XML' and 'test.xml' are the same file</code><br> <strong>Yikes!</strong><br> What's going on? Well, on the workstation that we used to create the template, somebody made a typo and typed (XML) instead of (xml) and the workstation was configured not to look for case sensitivity. There are ways to change this behavior, <a href="https://devblogs.microsoft.com/commandline/improved-per-directory-case-sensitivity-support-in-wsl/">per this article.</a><br> If you are using Windows and WSL and you are used to working on a Mac, take note - danger!</p> wsl bash