Two simple solutions: Execute your code once before the while loop actions() { check_if_file_present # Do other stuff } actions #1st execution while [ current_time <= $cutoff ]; do actions # Loop execution done Or: while : ; do actions [[ current_time <= $cutoff ]] || break done
I wouldn’t say it’s bad – but equally I would normally at least look for an alternative. In situations where it’s the first thing I write, I almost always at least try to refactor it into something clearer. Sometimes it can’t be helped (or the alternative is to have a bool variable which does nothing … Read more
It is considered acceptable practice to isolate these decisions in a function and use returns instead of breaks. While all these checks correspond to the same level of abstraction as of the function, it is quite logical approach. For example: void foo(…) { if (!condition) { return; } … if (!other condition) { return; } … Read more
I am not sure what you are trying to do. You can implement a do-while loop like this: while True: stuff() if fail_condition: break Or: stuff() while not fail_condition: stuff() What are you doing trying to use a do while loop to print the stuff in the list? Why not just use: for i in … Read more