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What does ! (exclamatory) mark inside curly braces ({}) when using variable in unix [duplicate]

Let var be a variable and it assigned a value /home/user as below var=/home/user when using this variable, i have seen it using both of the

Django ck-editor can't add extra plugin

I am trying to add an extra plugin but I can't. When I am inspecting my console it's saying can't load the javascript file. Here is my code: error which I am ge

How do I send data to express backend from html frontend without a form?

I am trying to create a small ecommerce website where I need to have a cart page. I need to make it so when a user clicks on Add to cart button, the particular

What does @SCORE(1) mean in JUNIT?

Some legacy code has @SCORE(1) on top of a JUNIT test case and I'm not sure what it means and both Google and the API aren't turning much up

Using a variant of the SUMPRODUCT formula in VBA

I want to use following type of SUMPRODUCT formula in VBA: =SUMPRODUCT(A1:A2,C1/B1:B2) It works fine in excel, but when using it as a VBA function it gives an

Transaction logs file size increased but most of the size is not in used, why?

i have database called TestDataBase contains a table called TestTable storing 10k records. below is the size of data file, transaction logs file(TestDataBase_lo

tkinter having different titles for two windows

I want to use tkinter to create an application that has two windows with different titles. Here's my code. import tkinter as tk class Demo1: def __init__(s