04-17-2012
Quote:
Originally Posted by
Scrutinizer
Regarding the security aspect, what is probably meant by this is that $@ can be expanded into separate fields each within double quotes, thus protecting the fields from unwanted interpretation by the shell. With $* this is only possible without double quotes and so there is no protection.
And fields which contain $IFS are split when exposed without double quotes.
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LEARN ABOUT OPENSOLARIS
difftime
difftime(3C) Standard C Library Functions difftime(3C)
NAME
difftime - computes the difference between two calendar times
SYNOPSIS
#include <time.h>
double difftime(time_t time1, time_t time0);
DESCRIPTION
The difftime() function computes the difference between two calendar times.
RETURN VALUES
The difftime() functions returns the difference (time1-time0) expressed in seconds as a double.
USAGE
The difftime() function is provided because there are no general arithmetic properties defined for type time_t.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
ctime(3C), attributes(5), standards(5)
SunOS 5.11 24 Jul 2002 difftime(3C)