August 2012
Intermediate to advanced
624 pages
17h 11m
Polish
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5.9. Obsługa parametrów zawierających znaki spacji
Problem
Wydawało się, że skrypt pobierający jako parametry nazwy plików działa poprawnie. Jednak pewnego razu zawiódł. Okazało się, że problemem jest znak spacji w nazwie jednego z plików.
Rozwiązanie
Nazwy plików, które zawierają znaki spacji (jeżeli są wymieniane jako parametry) powinny być otaczane znakami cudzysłowu. Podobnie odwołania do zmiennych należy otaczać znakami cudzysłowu.
Analiza
Dziękujmy inżynierom firmy Apple! Chcąc ułatwić pracę użytkownikom, spopularyzowali oni koncepcję uznawania znaku spacji za dopuszczalny znak nazwy pliku. Dzięki temu każdy może korzystać z plików o nazwach typu Mój raport lub Dane naszego wydziału zamiast trudnych do odczytania ciągów MójRaport lub Dane_naszego_wydziału ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.