iPhone’s Photos app doesn’t display EXIF metadata by default, but the timestamp information is embedded in every photo. You need to access the EXIF data to see when a photo was actually taken. Using the Photos App (Built-in) Starting with iOS 15+, Apple added some native EXIF viewing directly in the Photos app: Open the…
Use usermod to add a user to supplementary groups. The -a (append) flag is critical — without it, you’ll remove the user from all groups not explicitly listed. usermod -a -G group_name user_name To add a user to multiple groups at once: usermod -a -G group1,group2,group3 user_name Options explained -a, –append Append the user to…
Static linking embeds all library code directly into your executable, eliminating runtime dependencies on shared libraries. This approach trades disk space for portability and eliminates “library not found” errors at runtime. Basic Static Compilation To statically link a simple C program, use the -static flag: gcc -static -o myprogram myprogram.c For C++: g++ -static -o…
The Question2Answer (Q2A) Share plugin enables social sharing functionality for questions and answers on your Q2A installation. This guide covers installation and configuration. Installation First, download the plugin from the official repository: cd /path/to/your/q2a/qa-plugins git clone https://github.com/NoahY/q2a-share.git q2a-share Alternatively, download the ZIP file from GitHub and extract it directly into your qa-plugins directory. The directory…
In many WordPress themes, the sidebar loads before the main content area in the HTML source. This affects SEO and accessibility, since search engines and screen readers process content in source order. Moving the main content div before the sidebar in HTML while keeping the visual layout intact improves your site’s structure. The Problem A…
Question2Answer supports third-party authentication through social login plugins. Here’s how to set up Sina Weibo and Tencent QQ login integration. Prerequisites You’ll need: A Question2Answer installation (v1.8.x or later) Admin access to your Q2A instance Developer accounts and API credentials from both platforms Getting API Credentials Sina Weibo: Register as a developer at https://open.weibo.com/ Create…
WordPress’s default block editor works fine for most users, but if you’re comfortable with Markdown—especially for code-heavy technical posts—you’ll want a solid setup that doesn’t corrupt existing content or create maintenance headaches. The key requirement: your solution must preserve Markdown in the database and render it on demand, rather than converting it to HTML and…
Controlling a GNOME desktop remotely—locking the display, activating the screensaver, or blanking the screen—requires you to interact with the running GNOME session. The approach depends on your GNOME version and what you’re trying to accomplish. Using systemd User Sessions and D-Bus Modern GNOME (3.30+) uses systemd user sessions and D-Bus for session management. The older…
Question2Answer doesn’t include built-in social authentication out of the box, but several community solutions make it straightforward to add OAuth integrations for Google, Facebook, Twitter, and OpenID providers. Modern Approach: Question2Answer Open Login The recommended path is using Question2Answer Open Login, a maintained plugin that handles multiple OAuth2 providers cleanly. This replaces the older Loginza…
MKV (Matroska) containers frequently contain multiple audio tracks. You can cycle through them during playback using keyboard shortcuts. Using mplayer Press # to cycle through available audio tracks while the video is playing. This works for MKV, AVI, MPEG, and other container formats that mplayer supports. mplayer video.mkv # Then press # during playback to…
If you’re still seeing Chrome warnings about Flash Player being out of date on Linux, understand that Adobe discontinued Flash Player entirely in December 2020. Chrome removed all Flash support in version 88 (early 2021) and has no mechanism to run Flash content anymore. If you’re encountering this message in 2026, you’re likely: Using an…
You have two branches with diverging histories and need to apply only certain commits from one branch to another. Git’s cherry-pick command lets you do exactly that. The scenario Say you have: dev branch: c0 → c1 → c2 → c3 → c4 master branch: c0 → c5 → c6 Commits c2 and c3 fix…
SSH tunneling is one of the most reliable ways to create a secure proxy on Windows. You can route traffic through a remote SSH server, encrypting your connection and bypassing local network restrictions. Prerequisites You’ll need: An SSH server with valid credentials An SSH client (Windows 10/11 includes OpenSSH, or use PuTTY, Git Bash, or…
If you follow accounts but they don’t follow you back, you’ll want a reliable way to identify those one-sided relationships. Here’s how to approach it in 2026. Native X/Twitter Tools X’s official analytics and settings have evolved. While the platform doesn’t provide a built-in “find non-followers” feature in the main UI, you can use: Through…
Vim ships with built-in completion that many people don’t fully leverage. Before reaching for plugins, understand what’s already available: Ctrl+N / Ctrl+P: Basic keyword completion from open buffers and loaded files Ctrl+X Ctrl+F: Filename completion Ctrl+X Ctrl+]: Tag completion (requires ctags) Ctrl+X Ctrl+O: Omnicompletion (language-aware, when available) The omnicompletion (Ctrl+X Ctrl+O) is what resembles IDE…
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…