August 2012
Intermediate to advanced
624 pages
17h 11m
Polish
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18.2. Powtarzanie ostatniego polecenia
Problem
Wpisaliśmy długie i złożone polecenie uwzględniające skomplikowane ścieżki dostępu i rozbudowane parametry. Teraz trzeba to polecenie powtórzyć. Czy trzeba je ponownie wprowadzić?
Rozwiązanie
Problem można rozwiązać dwoma metodami. Pierwsza polega na wpisaniu dwóch znaków wykrzyknika, które powodują, że powłoka bash wyświetli ostanie polecenie. Oto przykład
$ /usr/bin/gdzieś/jakiśprogram -g -H -yknot -w /tmp/długanazwapliku
...
$ !!
/usr/bin/gdzieś/jakiśprogram -g -H -yknot -w /tmp/długanazwapliku
...Inne (bardziej współczesne) rozwiązanie sprowadza się do naciśnięcia klawisza strzałki w górę. Wielokrotne naciskanie klawisza strzałki w górę pozwala na wybranie odpowiedniego polecenia spośród wprowadzonych ...
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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.