Cheatsheets

In this guide, you are going to learn how to run only specific commands with sudo in Linux. Our previous guide covered how to add user to sudo group to enable them to execute the commands with elevated privileges. How to Add Users to sudo group in Linux So it is possible to enable a user to run only specific commands with...

This guide will take you through how to delete lines matching specific pattern in a file using VIM. Linux system admins work with files day in day out. At some point, you may want just to delete lines matching a specific pattern or a string in a file. There are quite a number of tools out there that you...

This tutorial will guide you on how to connect to WiFi in Linux using NMCLI command. NMCLI is a command-line tool for controlling NetworkManager and reporting network status. It can be utilized as a replacement for nm-applet or other graphical clients. It is used to create, display, edit, delete, activate, and deactivate network connections, as well as control and...

In this tutorial, we are going to learn how to install and setup Zsh and Oh-my-Zsh on Ubuntu 20.04. Z shell (ZSH) Zsh is a UNIX command interpreter (shell) usable as an interactive login shell and as a shell script command processor. It incorporates features of other shells such as Bash, tcsk, ksh. Some of the features include; Smart command TAB auto-completionImproved...

In this guide, we are going to learn how to delete lines matching a specific pattern in a file using SED. SED is a stream editor that performs basic text filtering and transformations on an input stream (a file or input from a pipeline). Delete Lines Matching a Specific Pattern in a File using SED In our previous guide, we covered...

In this guide, we are going to learn how to add users to sudo group in Linux. More often than not, you want, as a non-root user, to run commands with elevated privileges in Linux. So the only way this can happen is to give user sudo privileges by adding them to a sudo group or to sudoers file. How...

In this guide, we are going to learn how to restrict SFTP user access to specific directories in Linux systems. SFTP, an acronym for Secure File Transfer Protocol is a secure file transfer protocol that runs over SSH. It offers all the features offered by the legacy FTP protocol but in a more secure manner. Restrict SFTP User Access to...

In our today's guide, we are going to learn how to install Foxit PDF reader on Ubuntu 20.04. Foxit PDF reader is available in both Free and Enterprise editions. Some of the features provided by Foxit PDF reader include but not limited to; Intuitive User InterfaceCustomize ToolbarTouch Screen SupportPDF PortfoliosForm FillingForm Data Import/ExportParticipate in Shared ReviewComments ToolsManage CommentsInsert Images, Videos,...

In this tutorial, we are going to learn how to install and use 7zip on Ubuntu 18.04/Ubuntu 20.04. 7zip is a free and open-source file archiver with a high compression ratio. The program supports 7z, LZMA2, XZ, ZIP, Zip64, CAB, RAR, ARJ, GZIP, BZIP2, TAR, CPIO, RPM, ISO, most filesystem images and DEB formats. Compression ratio in the new...

Good day all. This guides is about installing Perf performance analysis tool on Ubuntu 18.04. Perf, also known as perf_events is a powerful performance counter for Linux systems that gathers data about hardware events such as instructions executed, branches mispredicted or cache-misses suffered. It also provides very low overhead profiling of applications to trace dynamic control flow and identify hotspots,...