August 2012
Intermediate to advanced
624 pages
17h 11m
Polish
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14.9. Wyszukiwanie w zmiennej $PATH katalogów umożliwiających modyfikowanie zawartości
Problem
Chcemy mieć pewność, że w zmiennej $PATH użytkownika root nie występują katalogi, w których mogą wprowadzać zmiany wszyscy użytkownicy systemu. Informacje o tym, dlaczego takie ustawienie jest niepożądane, zostały zamieszczone w „14.10. Dodawanie bieżącego katalogu do listy $PATH”.
Rozwiązanie
Przedstawiony poniżej skrypt zapewnia weryfikację katalogów zapisanych w zmiennej $PATH. W połączeniu z poleceniem su lub sudo pozwala na sprawdzenie listy katalogów innych użytkowników.
#!/usr/bin/env bash # plik receptury: chkpath.1 # Wyszukanie katalogów zmiennej $PATH, które umożliwiają zapis wszystkim # użytkownikom lub które nie występują w systemie exit_code=0 ...
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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.