Jak wydrukować time_t w określonym formacie?

Question

komenda ls drukuje czas w formacie:

Aug 23 06:07 

Jak mogę konwertować czas odebrany od stat() „s mtime() do tego formatu czasu lokalnego?

Answer 1

Zastosowanie strftime (trzeba konwertować time_t do struct tm* pierwszy):

char buff[20]; 
struct tm * timeinfo; 
timeinfo = localtime (&mtime); 
strftime(buff, sizeof(buff), "%b %d %H:%M", timeinfo); 

Formaty:

%b - The abbreviated month name according to the current locale. 

%d - The day of the month as a decimal number (range 01 to 31). 

%H - The hour as a decimal number using a 24-hour clock (range 00 to 23). 

%M - The minute as a decimal number (range 00 to 59). 

Oto pełny kod:

struct stat info; 
char buff[20]; 
struct tm * timeinfo; 

stat(workingFile, &info); 

timeinfo = localtime (&(info.st_mtime)); 
strftime(buff, 20, "%b %d %H:%M", timeinfo); 
printf("%s",buff);