August 2012
Intermediate to advanced
624 pages
17h 11m
Polish
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17.11. Zliczanie różnic między plikami
Problem
Dysponujemy dwoma plikami i chcemy wiedzieć, ile jest między nimi różnic.
Rozwiązanie
Wystarczy zliczyć zmiany wymienione w listingu wynikowym polecenia diff.
$ diff -C0 plik_oryginalny plik_zmodyfikowany | grep -c "^\*\*\*\*\*" 2 $ diff -C0 plik_oryginalny plik_zmodyfikowany *** plik_oryginalny 2007-11-12 15:14:15.000000000 +0100 --- plik_zmodyfikowany 2007-11-12 15:14:49.000000000 +0100 *************** *** 1 **** ! To jest plik oryginalny, a ten wiersz zostanie zmieniony. --- 1 ---- ! To jest plik zmodyfikowany, a ten wiersz został zmieniony. *************** *** 5 **** ! Ten natomiast jest inny. --- 5 ---- ! Ten z kolei jest inny.
Jeżeli liczba zmian jest nieistotna, a konieczne jest jedynie ustalenie, ...
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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.