The default Vim plugin directory structure under ~/.vim is inherently messy. Without a plugin manager, files from different plugins scatter across autoload/, plugin/, ftplugin/, colors/, and other directories, making it difficult to track which files belong to which plugin. Removing a plugin requires manually hunting down and deleting its files across multiple locations. Several plugin…
By default, Vim searches case sensitively. You can match dog, Dog, DOG, and other case variations using one of three approaches. Using the ignorecase Option The simplest method is to enable the ignorecase setting: :set ignorecase Now /dog will match dog, Dog, DOg, and any other case variation. To disable it: :set noignorecase Add this…
If you’ve merged a branch and want to undo it, Git provides several approaches depending on your situation. The key difference is whether you have uncommitted local changes and whether the merge has already been pushed. Using git reset for unpushed merges If the merge is only in your local repository and hasn’t been pushed,…
Setting up PHP with Apache on Fedora involves installing the PHP module, configuring Apache to process PHP files, and verifying the setup works correctly. Install PHP and Apache sudo dnf install httpd php php-fpm # Start and enable Apache sudo systemctl enable –now httpd # If using PHP-FPM (recommended for modern Fedora) sudo systemctl enable…
Working in an SVN repository often leaves behind temporary build artifacts, compiled outputs, and editor cache files. Unlike Git’s git clean command, SVN has no built-in cleanup mechanism for untracked files. Using svn st to Identify Untracked Files The svn status command (or svn st) marks untracked files with a ? prefix. You can leverage…
When you modify /etc/sysctl.conf, the changes take effect on the next reboot. To apply them immediately without rebooting, use the sysctl -p command: sudo sysctl -p This reads the configuration file and applies all settings to the running kernel. Reloading Specific Configuration Files By default, sysctl -p reads from /etc/sysctl.conf. You can specify a different…
Directory listing exposes your file structure to visitors and can be a security concern. Apache’s .htaccess file provides a straightforward way to disable this behavior while still allowing direct file access. Basic Implementation Create a .htaccess file in the directory where you want to disable listing: Options -Indexes Place this file in the root directory…
The caption LaTeX package provides customizable captions for floats (figures, tables, and other environments). It offers much more control than LaTeX’s default caption formatting. Install on Fedora The caption package is included in the texlive collection: # Install the full texlive collection (includes caption) sudo dnf install texlive-collection-latexrecommended # Or install just the caption package…
If you’ve made changes to your working copy but haven’t committed them yet, you can discard them using svn revert. This is useful when you want to abandon edits and go back to the last committed version. Basic Revert To revert all changes in your working copy, run this from the repository root: svn revert…
The wp_list_pages() function is the standard way to display child pages of a page in WordPress. This is useful for building navigation menus, sidebars, or displaying page hierarchies. Basic Implementation Here’s a working example that displays all child pages of the current page: <h3>Pages under <?php the_title(); ?></h3> <div class=”entry”> <ul> <?php wp_list_pages(array( ‘title_li’ =>…
MySQL Cluster uses NDB (Network Database) storage engine to provide high availability and data redundancy across multiple nodes. This guide covers installation and configuration on modern RHEL-compatible systems. Prerequisites Three or more servers (minimum: one management node, two data nodes, one SQL node) Rocky Linux 9 or AlmaLinux 9 Root or sudo access Static IP…
Standard Markdown syntax doesn’t include built-in parameters for image dimensions. The basic syntax  produces images at their original size or constrained by container width, with no way to specify explicit dimensions. If you need to control image size, you have several options depending on your use case and platform. HTML <img> Tag The…
Tracking branches link your local branch to a remote branch, enabling git pull and git push to work without specifying the remote and branch name each time. Here’s how to configure this. The basic command To set an upstream tracking branch for your current branch: git branch –set-upstream-to=origin/branch-name Or the shorter alias: git branch -u…
Taking photos with iPhone earphone remotes provides a practical way to reduce hand shake and camera blur, especially useful for self-portraits, group photos, or situations where you need stable hands-free operation. How to Trigger the Camera Press the volume-up button on your earphone remote to capture a photo. This works with the native Camera app…
GNOME uses .desktop files in ~/.config/autostart/ to launch applications when you log in. This mechanism works across GNOME, XFCE, KDE, and most other modern desktop environments. Basic Setup Create a .desktop file in ~/.config/autostart/. Here’s a minimal example: [Desktop Entry] Type=Application Name=My Autostart Script Exec=/home/user/bin/myscript.sh Save this as ~/.config/autostart/myscript.desktop and it will run on your…
iOS automatically pauses video playback when you lock your device to save battery and comply with app guidelines. If you want to listen to audio from a video while your screen is locked — say, watching a music video or podcast while walking — you need to enable background audio mode in your player app….
If you’re creating posters—whether for conferences, events, or general communication—you’ll want the right tools and guidance. Here’s a practical breakdown of what works. Design Software Inkscape is your go-to for vector-based design. It’s free, open-source, and handles logos, text, and scalable graphics without quality loss. Use it when you need clean lines, precise shapes, or…
GNOME Keyring stores passwords, SSH keys, and certificates. If you need to update your keyring password, you can do this through the Seahorse graphical interface or directly from the command line. Using Seahorse (GUI Method) Seahorse is GNOME’s visual keyring manager. Open it with: seahorse Once open: Go to the View menu and select By…
When you’re fighting page limits — conference submissions, journal requirements, or just fitting content on a poster — reducing LaTeX’s default spacing is essential. Here are the practical approaches, from gentle to aggressive. Basic Spacing Adjustments Start with the most impactful changes. These target the whitespace around floats (figures, tables) and captions: \setlength{\textfloatsep}{1pt} % Space…
If you need server imagery for documentation, presentations, or technical content, here are reliable sources for free-to-use assets: Vector Graphics and Icons Wikimedia Commons offers a solid collection of server-related SVG files under open licenses: Multiple servers Single server Color variants (yellow, green, and others) These are ideal for diagrams, documentation, and architectural drawings since…