When running make recursively with $(MAKE) or make -C, you’ll see verbose messages like “Entering directory” and “Leaving directory” for each subdirectory. These messages clutter the build output and make it harder to spot actual errors. The Quick Fix Pass –no-print-directory to make: make –no-print-directory Or set it in your Makefile: .MAKEFLAGS: –no-print-directory Suppressing via…
GNU Screen’s status bar (called the hardstatus line) displays useful information about your current session—which window you’re on, the time, hostname, and more. It’s especially helpful when you’re running multiple windows and need a quick visual reference without typing commands. Basic Status Bar Setup Add these lines to your ~/.screenrc: hardstatus alwayslastline hardstatus string ‘%{=…
[md] When you need to inspect what files a .deb package contains or will install, dpkg is your primary tool. This is useful for understanding package contents before installation, checking what files a package added to your system, or troubleshooting file conflicts. ## Listing Files in an Installed Package If the package is already installed…
RTMP (Real Time Messaging Protocol) streams are still used for live broadcasts and on-demand video delivery, though less commonly than HLS or DASH. If you need to capture an RTMP stream, there are several solid tools available on Linux. Using ffmpeg (recommended) ffmpeg is the modern standard for working with RTMP streams. It’s widely available,…
Distribution repositories often lag behind Calibre’s latest releases. If your package manager shows an older version and you need current features or bug fixes, installing directly from the official installer is straightforward. Official installer method Calibre provides a dedicated Linux installer that works across distributions. This is the recommended approach for staying current: sudo -v…
Understanding the difference between reliability, durability, and availability is critical when designing or operating distributed storage systems like HDFS, Ceph, or cloud object storage. These terms are often confused, but they address distinct concerns. Durability Durability answers: If the system fails completely, will my data survive? Durability is about persistence to non-volatile storage. Data is…
When you need to extract a value from a list that should contain exactly one element, pattern matching is the idiomatic way to handle it in functional languages. The error “unbound value c” typically occurs when you try to use a variable that wasn’t properly bound through pattern matching. OCaml Pattern Matching In OCaml, use…
MPlayer is largely obsolete for modern webcam capture tasks. FFmpeg and simpler tools like ffplay now handle camera input more reliably across different hardware and driver configurations. That said, if you’re working with legacy systems or specifically need MPlayer’s features, here’s how to use it alongside more current alternatives. Using FFmpeg (Recommended) FFmpeg is the…
The .mbox format stores email messages as plain text in a single file, with each message separated by a “From ” line. If you have archived emails or need to work with mailbox exports, here are the practical ways to read and manipulate them on Linux. Using Thunderbird Thunderbird remains a solid option for viewing…
Linux Mint’s Driver Manager makes installing proprietary wireless drivers straightforward, but the process varies depending on your hardware and kernel version. For older HP Mini 110 netbooks with Broadcom BCM43xx chipsets, the bcmwl-kernel-source driver remains the most reliable option. Check Your Wireless Hardware First, identify your wireless adapter before installing drivers: lspci | grep -i…
Monitoring hardware temperatures is essential for laptop health and performance. On Linux, lm-sensors provides CPU and system temperatures, while smartctl (from smartmontools) gives you drive health data including temperature readings. Installation Debian/Ubuntu/Linux Mint: sudo apt install lm-sensors smartmontools Fedora/RHEL/CentOS: sudo dnf install lm_sensors smartmontools Arch Linux: sudo pacman -S lm_sensors smartmontools Detecting Sensors Before reading…
iPhone videos often have rotation metadata embedded in the file rather than actual video frame rotation. This causes playback issues on Linux systems that don’t properly read the metadata. You’ll need to either apply the rotation during playback or permanently rotate the video frames. Understanding iPhone Video Rotation iPhones store rotation information in the video…
When you connect an iPhone or iPad to a computer and tap “Trust,” iOS stores a pairing record that allows that computer to communicate with the device without asking for permission again. If you want to revoke that trust relationship, you need to delete the pairing data on both the device and the computer. On…
FFmpeg is essential for video and audio processing on Linux. Installation methods vary depending on your Linux Mint version and whether you want the stable release or cutting-edge builds. Installing FFmpeg from Official Repositories The simplest approach is to use your distribution’s package manager. FFmpeg is now included in the official repositories for all modern…
Converting FLV files to MP4 is straightforward with FFmpeg. The basic command takes just seconds: ffmpeg -i input.flv output.mp4 FFmpeg will automatically select suitable video and audio codecs for MP4 format. This works for most FLV files without additional configuration. Preserving original quality If you want to skip re-encoding and copy the streams as-is, use…
The No-IP Dynamic Update Client (DUC) keeps your dynamic DNS hostname pointing to your current IP address. Here’s how to install and configure the noip2 client on modern Linux distributions. Prerequisites Before you start, install the required build tools and development libraries: sudo apt-get update sudo apt-get install build-essential gcc libc6-dev If you’re on a…
Windows Disk Management has built-in limitations for resizing partitions — it often won’t let you extend the C: drive even when unallocated space exists on the disk. If you’ve hit that wall, third-party partition tools can handle the job more flexibly. Why Disk Management Falls Short Disk Management can only extend a volume into adjacent…
The most reliable way to download YouTube videos is yt-dlp, a maintained fork of youtube-dl that handles modern YouTube changes and DRM protections. It works on Linux, macOS, and Windows. Installation Linux (Debian/Ubuntu): sudo apt install yt-dlp Linux (Fedora/RHEL): sudo dnf install yt-dlp macOS: brew install yt-dlp Windows or any system with Python 3.8+: pip…
Getting video files from your Linux machine to an iPhone for offline viewing doesn’t require iTunes or complex workarounds. Here are the practical methods that actually work in 2026. Quick Upload via VLC’s WiFi Interface VLC for iOS remains the most straightforward approach for occasional transfers. It’s free, open-source, and handles virtually any codec you…
To replace text containing newline characters in Emacs, you need to insert actual newline characters in the replacement string rather than literal \n sequences. Using C-q C-j for interactive replacement The standard approach uses quoted-insert to insert special characters literally: C-q invokes quoted-insert C-j inserts a literal newline (LF, ASCII 10) Open the find and…