August 2012
Intermediate to advanced
624 pages
17h 11m
Polish
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2.6. Zapisywanie wyniku w plikach innych katalogów
Problem
Chcemy zapisać wynik wykonania polecenia w innym miejscu systemu plików niż bieżący katalog.
Rozwiązanie
W definicji przekierowania strumienia wyjściowego należy uwzględnić ścieżkę dostępu do pliku.
$ echo kilka dodatkowych danych > /tmp/echo.txtlub
$ echo kilka dodatkowych danych > ../../plik.docelowyAnaliza
Nazwa pliku występująca za znakiem przekierowania strumienia (>) jest po prostu ścieżką dostępu do pliku. Jeśli nazwy nie poprzedza żaden kwalifikator, plik jest umieszczany w bieżącym katalogu.
Jeżeli nazwa pliku rozpoczyna się od znaku ukośnika (/), jest to wówczas bezwzględna ścieżka dostępu, która wyznacza położenie pliku w drzewie katalogów systemu plików w odniesieniu do katalogu głównego ...
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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.