If you want to store a big folder as a single file, so it could be easily uploaded somewhere or shared with someone, you can create a simple zip archive from it. To avoid wasting a time and resources on compression and decompression, this zip archive can be created without compression. In this short note […]
Save All the Terminal Output to a File – Linux
In Linux terminal you can save not only an output of the individual commands using different types of redirections, but you can also capture and save to a file all the commands executed during a session and their output. All the commands executed in a Linux terminal and their output can be saved to a […]
Mount LVM Partition in Rescue Mode
Usually, for the system repair purposes, such as troubleshooting of the boot-related issues (e.g. GRUB rescue) or for data recovery, it is required to know how to mount an LVM partition in a live Linux session (when a system boots from a live CD/DVD or from a special rescue USB stick). In this article i […]
Linux Rescue USB – Data Recovery & System Repair
Rescue and recovery disks are used for repairing a system and data after a crash on Linux and Windows devices. They are especially useful for troubleshooting of the boot-related issues and for data recovery. In this note i will show how to create a bootable rescue USB stick with a SystemRescue (also known as a […]
How To Find Laptop’s Model & Serial Number – CMD
The laptop’s model and serial number usually can be found on the bottom case of the laptop as either a printed sticker or laser etched into the cover. Also the model and the serial number of a laptop can easily be found using a Windows command prompt (CMD). This “command prompt method” works for all […]
Outlook: Strikethrough – How to Cross Out Text
In Microsoft Outlook the “Strikethrough” feature allows to draw a horizontal line through the selected text to indicate deleting or changing. For the new users it may be complex to understand how to cross out a text in an email as the “Strikethrough” button is absent in the “Basic Text” section of the ribbon in […]
Network Printer is Printing Gibberish – Ubuntu/Linux
If your network printer is printing gibberish and random characters that is a common driver-related issue. I had this problem on Ubuntu and Linux Mint with my Samsung M2070 printer connected over Wi-Fi network. When I tried to print some single-page document, the printer went crazy and printed out a series of strange random symbols […]
Ansible: Set Variable In Task
Variables in Ansible can be defined in many different places, such as in inventory, in playbooks, in reusable files, in roles, and at the command-line. Ansible also allows to set variables directly in a task by using the set_fact module. Variables defined using the set_fact become associated with the host that the task is running […]
Ansible: Compare Version Numbers – Examples
As Ansible is widely used as an automated provisioning and deployment tool, it is quite often required to compare version numbers of different software components. For example, you may need to check the current version of an application and compare it with the latest one to take a decision if update is required. To compare […]
Sudo Echo “To” > File: Permission Denied [SOLVED]
If you try to echo something to a file that you don’t have permission to write to, you will receive the “permission denied” error. But, what might seem surprising, if you try to repeat the same echo command with sudo, you will still receive the same “permission denied” error. The construction sudo echo ‘something’ > […]