August 2012
Intermediate to advanced
624 pages
17h 11m
Polish
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17.9. Tworzenie indeksu plików
Problem
Dysponujemy dużym zbiorem plików, dla których trzeba przygotować indeks.
Rozwiązanie
Należy zastosować polecenie find w połączeniu z poleceniami head, grep lub innymi instrukcjami, które wyodrębnią komentarze lub informacje opisujące przeznaczenie poszczególnych plików.
Na przykład jeśli każdy drugi wiersz przygotowywanych skryptów będzie składał się z pary nazwa-opis, do opracowania indeksu wystarczy polecenie:
$ for i in $(grep –E1 '![[:space:]]?/bin/sh' *); do head -2 $i | tail -1; doneAnaliza
Zgodnie z wcześniejszą informacją rozwiązanie to jest właściwe dla przypadków, w których indeksowane pliki zawierają opisujące je informacje (np. komentarze). Wyodrębnienie ich pozwala na określenie przeznaczenia pliku. ...
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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.