August 2012
Intermediate to advanced
624 pages
17h 11m
Polish
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4.10. Uruchomienie wszystkich skryptów w katalogu
Problem
Użytkownik musi uruchamiać kilka skryptów, ale lista tych skryptów ulega zmianie — dodawane są nowe pozycje. Ciągła modyfikacja listy jest uciążliwa.
Rozwiązanie
Wystarczy umieścić wszystkie skrypty w jednym katalogu i pozwolić powłoce na uruchomienie każdego programu, który w tym katalogu występuje. Operację przetwarzania listy instrukcji do wykonania można wówczas zastąpić przeglądaniem zawartości katalogu. Oto kod skryptu, który zapewni uruchomienie wszystkich programów znajdujących się we wskazanym katalogu:
for SCRIPT in /ścieżka/do/katalogu/skryptów/*
do
if [ -f $SCRIPT –a –x $SCRIPT ]
then
$SCRIPT
fi
doneAnaliza
Szczegółowe omówienie pętli for i instrukcji if znajduje się w Rozdział 6 ...
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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.