August 2012
Intermediate to advanced
624 pages
17h 11m
Polish
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19.1. Zapominanie o ustawieniu praw wykonywania
Problem
Napisaliśmy skrypt i chcemy przetestować jego działanie, ale próba jego uruchomienia kończy się wyświetleniem komunikatu:
$ ./mój.skrypt
-bash: ./mój.skrypt: Brak dostępu
$Rozwiązanie
Istnieją dwa sposoby rozwiązania problemu. Pierwszy polega na wywołaniu interpretera bash i przekazaniu nazwy skryptu jako parametru:
$ bash mój.skryptDrugi (właściwszy) sprowadza się do ustawienia prawa wykonywania i uruchomienia skryptu bezpośrednio z wiersza poleceń:
$ chmod a+x mój.skrypt $ ./mój.skrypt
Analiza
Każda z opisanych metod prowadzi do uruchomienia skryptu. Jeśli jednak przygotowany program będzie wykorzystywany bardzo często, korzystniejsze jest ustawienie prawa jego wykonywania. Operacja zmiany praw ...
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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.