While updating a Debian based system, you may encounter an error as follows: W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 2836CB0A8AC93F7A This is a feature of the apt-get package manager that checks the authenticity of servers while updating Debian. It just means […]
Category: Linux
Image via Wikipedia Linux systems commonly run on ext2/ext3/ext4 file systems. These file-systems have a built-in feature to tell the operating system to do a disk check while booting up if the number of times the disk has been mounted exceeds a certain number. Most commonly the count is set to 30. This is an […]
Image via CrunchBase The default installer of Dropbox for Ubuntu works with the Nautilus file manager. But this integration is not always desireable, below is a method to install Dropbox on your Ubuntu box without installing Nautilus.
Update (2026): This guide has been updated with modern Linux CLI tools, performance optimizations, and common terminal patterns for searching multiple strings seamlessly. Searching for multiple strings inside text files or terminal streams is an absolute staple of system administration, DevOps, and backend software engineering. While traditional Linux systems offer classic tools like grep, modern […]