If Your Going Through Hell Song

In recent times, if yourgoingthroughhell song has become increasingly relevant in various contexts. What does if __name__ == "__main__": do? If you are trying to close a question where someone should be using this idiom and isn't, consider closing as a duplicate of Why is Python running my module when I import it, and how do I stop it? For questions where someone simply hasn't called any functions, or incorrectly expects a function named main to be used as an entry point automatically, use Why doesn't the main () function ... How to check the exit status using an 'if' statement.

Every command that runs has an exit status. That check is looking at the exit status of the command that finished most recently before that line runs. If you want your script to exit when that test returns true (the previous command failed) then you put exit 1 (or whatever) inside that if block after the echo.

That being said, if you are running the command and are wanting to test its output ... SQL Server IF NOT EXISTS Usage? Additionally, as I'm using EXISTS, I was just following what I thought was standard practice in sub-queries using EXISTS. Moreover, how to show "if" condition on a sequence diagram?. You'll need to complete a few actions and gain 15 reputation points before being able to upvote.

Upvoting indicates when questions and answers are useful. What's reputation and how do I get it? Instead, you can save this post to reference later. java - && (AND) and || (OR) in IF statements - Stack Overflow. Java has 5 different boolean compare operators: &, &&, |, ||, ^ & and && are "and" operators, | and || "or" operators, ^ is "xor" The single ones will check every parameter, regardless of the values, before checking the values of the parameters.

The double ones will first check the left parameter and its value and if true (||) or false (&&) leave the second one untouched. Multiple separate IF conditions in SQL Server - Stack Overflow. I have multiple IF statements that are independent of each other in my stored procedure. But for some reason they are being nested inside each other as if they are part of one big if statement ELS...

python - How to exit an if clause - Stack Overflow. What sorts of methods exist for prematurely exiting an if clause? There are times when I'm writing code and want to put a break statement inside of an if clause, only to remember that those can o... This perspective suggests that, difference between "if constexpr ()" Vs "if ()" - Stack Overflow.

Similarly, what is the difference between if constexpr() and if()? Where and When can I use both of them? in a windows batch file - Stack Overflow. Equally important, the zmbq solution is good, but cannot be used in all situations, such as inside a block of code like a FOR DO (...) loop.

An alternative is to use an indicator variable.