vi-vim-cheat-sheet.jpg
VIM/VI is the most popular/favourite text editor under Linux. It is unfortunately not a WYSIWYG (What you see is what you get) editor, and therefore, you have to remember …
Category: linux
Linux BASH Coding Exercise – Transpose File
Given a text file file.txt, transpose its content. You may assume that each row has the same number of columns and each field is separated by the ‘ ‘ …
Creating UI Controls under Linux Shell Console using whiptail Utility
Under Linux Shell Console, you can create UI dialogs based only on Text Characters. The whiptail allows to create common UI components under Console. The UI are advantageous in …
Curly Brace Group in Linux BASH
In Linux BASH shell, you can use curly brace {} to represent a set of possible values in an array. For example, touch abc{1,2,3,4} This will be equivalent to …
Linux Commands: Cowsay and Cowthink
Like figlet, banner, toilet, we have cowsay and cowthink that generates an ASCII picture of a cow saying/thinking something provided by the user. The only difference between these two …