We use sed to work with text files like log files, configuration files, and other text files.
In this post, we are going to focus on the sed Linux command, which is used for text manipulation, which is an essential step in our bash scripting journey.
Linux system provides some tools for text proce...
Sometimes you need something powerful, giving you more control to process data. This is where awk command comes in.
The awk command or GNU awk in specific provides a scripting language for text processing. With awk scripting language, you can make the following:
Define variables.
Use string and...
Whiptail is a program that allows shell scripts to display dialog boxes to the user for informational purposes, or to get input from the user in a friendly way. Whiptail is included by default on Debian.
From the Linux Dictionary: whiptail is a "dialog" replacement using newt instead of ncurses.
Fr...
In this code, the groceries properties is not deserialised from JSON. The name property is, but not the groceries one.
import Foundation
let json = """
{
"name": "wow",
"groceries": [
{
"name": "Banana",
"poin...
Hello World
We always need to follow two steps no matter how big the application is, there is always two steps. initialize the widget and shove it on the screen that it.
from tkinter import Tk,\
Label
#initializing tkinter application
root = Tk()
# Creating label widget
myLabel = Label(root, tex...
Selector
Example
Example description
.class
.intro
Selects all elements with class="intro"
.class1.class2
.name1.name2
Selects all elements with both name1 and name2 set within its class attribute
.class1 .class2
.name1 .name2
Selects all elements with name2 that is a de...
To return instancetype in Swift, you can define a generic helper method which infers the type of self from the calling context:
public extension UIViewController {
// Call this
public class func instance(storyboard sbname: String, bundle: Bundle? = nil, identifier: String?) -> Self {
...
