C file Last Modified Date
This section demonstrates you to find the last modified date of file in
C.
You can see in the given example that we want to get the last modified date
of the specified file Hello.txt. For this, we have defined the library
function strftime() provided by the header file <time.h>
that formats the time represented in the structure according to the formatting
rules defined in format and stored into t. The characters stored in t can
not exceed the defined max size of characters. Function localtime(&b.st_mt0ime)
determines the last modified date and time.
We have used some conversion characters begins with % sign and they are
followed by another character which defines a special value to replace, like %d
displays the day of the month (01-31), %m displays the month of the year
(01-12),%Y
displays the year, %H displays the hour of the day, %M displays the minute of
the hour and %S displays the seconds of the minute.
Here is the code:
LASTMODI.C
#include <time.h>
#include <stdio.h>
#include <conio.h>
#include <sys/types.h>
#include <sys/stat.h>
void main() {
char file[] = "c:\\Hello.txt";
char t[ 100 ] = "";
struct stat b;
if (!stat(file, &b)) {
strftime(t, 100, "%d/%m/%Y %H:%M:%S", localtime( &b.st_mtime));
printf("\nLast modified date and time = %s\n", t);
} else {
printf("Cannot display the time.\n");
}
getch();
}
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Output will be displayed as:
Download Source Code:
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