August 2012
Intermediate to advanced
624 pages
17h 11m
Polish
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9.7. Wyszukiwanie plików określonego typu
Problem
Chcemy odnaleźć katalog o nazwie java. Po wprowadzeniu polecenia:
$ find . –name '*java*' –printna ekranie zostaje wyświetlonych wiele nazw, w tym nazwy plików źródłowych języka Java.
Rozwiązanie
Zastosowanie predykatu –type z parametrem d pozwoli na wyodrębnienie jedynie katalogów:
$ find . –type d –name '*java*' –printAnaliza
W pierwszej części polecenia zostały zdefiniowane predykaty –type d oraz –name *java*. Kolejność występowania tych predykatów nie ma wpływu na wynik polecenia. Niemniej zapisanie predykatu –type d jako pierwszego na liście opcji zwiększa efektywność wyszukiwania, ponieważ powoduje zignorowanie każdego elementu, który nie jest katalogiem. Zatem wzorzec dopasowania nazwy zostanie ...
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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.
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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.