When managing packages on RHEL, CentOS, AlmaLinux, or Fedora, you sometimes need to prevent a package from being installed or updated from a particular repository. This is useful when multiple repos provide the same package and you want to control which version gets pulled in. Repository-specific exclusions with DNF Modern systems use DNF (which supersedes…
ELPA (Emacs Lisp Package Archive) packages receive regular updates. Keeping your packages current ensures you have the latest features and bug fixes. Here’s how to upgrade ELPA packages in Emacs. Interactive Upgrade (Recommended) Use Emacs’s built-in package manager: Open the package list: M-x list-packages Press U to mark all upgradable packages Press x to execute…
When you need a command or library file but don’t have the package installed, you need to search for which package provides it. On Red Hat/Fedora systems, yum provides or dnf provides does this. On Debian/Ubuntu, the equivalent is apt-file. Red Hat, Fedora, and CentOS (DNF/YUM) Use dnf provides (or yum provides on older systems):…
Node.js is available on Fedora through the DNF package manager and several alternative methods. Here’s how to install it using each approach. Method 1: DNF (System Package Manager) The simplest method — install Node.js directly from Fedora’s repositories: sudo dnf install nodejs npm Check the installed version: node –version npm –version Fedora’s repositories typically include…
When you need to see what versions of a package are available in your Ubuntu repositories, there are several approaches depending on how much detail you need. Using apt-cache showpkg The most direct method is apt-cache showpkg, which lists all available versions along with their repository sources: apt-cache showpkg thunderbird This output shows version numbers,…
Package managers on Debian and Ubuntu systems maintain detailed logs of all installations, upgrades, and removals. These logs are essential for auditing system changes, troubleshooting dependency issues, or understanding what was installed and when. Log File Locations The main log files you’ll work with are: /var/log/dpkg.log — Low-level package management operations logged by dpkg /var/log/apt/history.log…
Linux Mint uses the APT package management system (derived from Debian). There are several straightforward methods to verify whether a specific package is installed. Using dpkg The dpkg command directly queries the package database on your system. dpkg -l | grep ghostscript This lists all installed packages and filters for ghostscript. If the package is…
When you need to identify which package installed a command on your Fedora system, you have several reliable methods depending on whether the package is already installed. Quick lookup for installed commands The fastest approach combines which to locate the command with rpm to query the owning package: $ rpm -qf $(which ping) iputils-8.40-4.fc40.x86_64 The…
Managing OCaml packages effectively depends on your workflow and environment. The current standard is OPAM (OCaml Package Manager), which handles dependency resolution, version switching, and sandboxed environments. OPAM: The Standard Choice OPAM is the de facto package manager for OCaml and is maintained by the OCaml community. Install it using your system package manager or…
Before writing code, get comfortable with fundamental Linux commands. You’ll use these daily: File operations: ls, cd, cat, less Text search: grep, ripgrep (rg) Remote access: ssh, scp, rsync Session management: tmux or screen for persistent terminal sessions Shell: bash (default on most distributions), though zsh and fish are popular alternatives Start with built-in documentation….
Insert the installation media and create a mount point: sudo mkdir -p /media/dvd sudo mount /dev/sr0 /media/dvd For a DVD image file instead of physical media: sudo mount -o loop /path/to/image.iso /media/dvd Verify the mount and check that packages exist: ls /media/dvd/Packages/ | head On systems with automatic mounting (systemd-based), the DVD may already be…
To find all available versions of a package in your repository, use the –showduplicates flag: dnf list –showduplicates kernel Or for other packages: dnf list –showduplicates <package-name> The output shows both installed and available versions with their release tags. For example: Installed Packages kernel.x86_64 6.8.1-1.fc39 @updates Available Packages kernel.x86_64 6.7.12-200.fc39 updates kernel.x86_64 6.6.25-1.fc39 updates kernel.x86_64…