August 2012
Intermediate to advanced
624 pages
17h 11m
Polish
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1.2. Ustalenie katalogu bieżącego
Problem
Nie wiadomo, który katalog jest w danej chwili katalogiem bieżącym, a standardowy znak zachęty nie dostarcza informacji na ten temat.
Rozwiązanie
Należy wykorzystać wbudowaną instrukcję pwd lub zdefiniować bardziej użyteczny znak zachęty (więcej informacji na ten temat znajduje się w „16.2. Dostosowanie znaku zachęty”). Oto przykład:
bash-2.03$ pwd /tmp bash-2.03$ export PS1='[\u@\h \w]$ ' [jp@biuro /tmp]$
Analiza
Instrukcja pwd jest akronimem od słów print working directory oznaczających polecenie wyświetlenia nazwy bieżącego katalogu. Umożliwia dołączenie dwóch opcji: -L dostarcza danych na temat ścieżki logicznej (odpowiada domyślnemu sposobowi działania instrukcji), -P powoduje wyświetlenie informacji o ...
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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.