August 2012
Intermediate to advanced
624 pages
17h 11m
Polish
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16.2. Dostosowanie znaku zachęty
Problem
Domyślny znak zachęty powłoki bash zazwyczaj nie dostarcza zbyt wielu użytecznych informacji i jest zakończony „nic niemówiącym” znakiem $. Chcemy zmienić treść znaku zachęty w taki sposób, aby uwzględniała istotne dla użytkownika dane.
Rozwiązanie
Należy zmodyfikować wartości zmiennych $PS1 i $PS2.
Treść domyślnego znaku zachęty jest różna w różnych systemach. Sam interpreter standardowo uwzględnia w nim jedynie informacje o głównej i pobocznej wersji oprogramowania (\s-\v\$) — na przykład bash-3.00$. Dany system operacyjny może jednak narzucić własne ustawienie. Na przykład w dystrybucji Fedora Core 7 wyświetlany jest ciąg [użytkownik@jednostka ~]$ ([\u@\h \W]\$). W dalszej części receptury zostało przestawionych ...
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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.
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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.