August 2012
Intermediate to advanced
624 pages
17h 11m
Polish
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2.7. Zapisywanie wyniku polecenia ls
Problem
Po zapisaniu danych wyjściowych polecenia ls z użyciem mechanizmu przekierowania okazuje się, że format zawartości pliku wynikowego odbiega od spodziewanego.
Rozwiązanie
Korzystając z mechanizmu przekierowania strumienia wyjściowego w poleceniu ls, należy zastosować opcję –C.
Poniżej został przedstawiony przykład wyświetlenia zawartości katalogu za pomocą instrukcji ls.
$ ls
a.out config.txt def.conf kolejny.txt lista.lst plik.txtGdy jednak listing wynikowy zostanie zapisany w pliku z wykorzystaniem operatora >, a następnie zawartość pliku zostanie wyświetlona, na ekranie będzie można zobaczyć następującą treść:
$ ls > /tmp/zapis.txt $ cat /tmp/zapis.txt a.out config.txt def.conf kolejny.txt lista.lst plik.txt ...
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