Pasting external code into Vim often triggers unwanted autoindent behavior, adding extra indentation and breaking formatting. Vim’s paste mode disables all automatic indentation while inserting text, letting you paste code exactly as-is. Quick paste mode toggle Enable paste mode before pasting: :set paste Then paste your code. When done, disable it: :set nopaste This works,…
Google no longer displays author information in search results the way it did when Google+ existed. However, you can still control how your content appears in search results by using schema markup—specifically the author property in JSON-LD structured data. Current best practice: schema.org markup The modern approach uses JSON-LD structured data embedded in your page’s…
GNOME Keyring stores encrypted credentials, SSH keys, and secrets for applications. If you need to disable it or start fresh after forgetting the password, you can remove the keyring database. Keyring Storage Locations The location of keyrings depends on your GNOME version and configuration: GNOME 3.0+: ~/.local/share/gnome-keyring/ or ~/.local/share/evolution/calendar/ Older GNOME: ~/.gnome2/keyrings/ XDG Base Directory…
When you’re editing code in Vim and press Enter after a comment line, Vim automatically continues the comment on the next line. This is useful sometimes, but often gets in the way. Here’s how to disable it. The Basic Approach Add this to your ~/.vimrc: au FileType c,cpp setlocal comments-=:// comments+=f:// This works by: comments-=://…
Firefox Sync lets you keep bookmarks, passwords, history, open tabs, and settings synchronized across all your devices. It’s built on Mozilla’s infrastructure and doesn’t require a separate account beyond your Firefox account. Prerequisites Firefox 22 or later (current versions are 2024+) A Mozilla Firefox Account Devices running Windows, macOS, Linux, iOS, or Android Initial Setup…
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If you’re working with Microsoft Office 2007, converting documents to PDF or XPS format requires an additional add-in since native support wasn’t built into the original release. Installing the Save as PDF or XPS Add-in Microsoft provides a free add-in that enables PDF and XPS export across eight Office 2007 applications. Download it from Microsoft’s…
iPhones have built-in emoji support that doesn’t require any third-party apps. The emoji keyboard is part of iOS and can be enabled directly through system settings. Enable the Emoji Keyboard Open Settings → General → Keyboard → Keyboards Tap Add New Keyboard Select Emoji from the list Tap Done Once enabled, you can switch to…
Continue Learning Explore the Programming Academy
Continue Learning Explore the Programming Academy
Continue Learning Explore the Programming Academy
Continue Learning Explore the Programming Academy
Continue Learning Explore the Programming Academy
Continue Learning Explore the Programming Academy
Continue Learning Explore the Programming Academy
Continue Learning Explore the Programming Academy
Archiving or copying a 1TB sparse file containing only 32MB of actual data is impractical with naive approaches—you’ll waste time and I/O bandwidth copying zeros. The solution is using SEEK_HOLE and SEEK_DATA flags with lseek(), which allow tools to skip over hole regions entirely. How SEEK_HOLE and SEEK_DATA work The Linux kernel provides two additional…
If you suspect a disk has bad blocks, use the badblocks utility to scan for them. This tool probes a device (usually a disk partition) and reports which blocks are unreliable or unreadable. Basic Usage badblocks /dev/sda1 This scans /dev/sda1 from the first block to the last block on the device. Common Options -s: Show…
MATE is a continuation of GNOME 2, maintained by the MATE Desktop Environment project. It’s included in Fedora’s official repositories and is a supported desktop option. Install MATE Desktop MATE is available as a desktop environment group in Fedora 41’s repositories. Install the base desktop with: sudo dnf install @mate-desktop The @mate-desktop group installs the…
When you mmap() a range larger than your system’s total physical memory plus swap, the kernel normally reserves swap space to back the mapping. If that reservation would exceed available swap, mmap() fails with ENOMEM. The MAP_NORESERVE flag lets you bypass this reservation requirement. Understanding the Default Behavior By default, when you call mmap() with…