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Top Forums Shell Programming and Scripting What's the difference between $* and $@ ? Post 302625175 by Skrynesaver on Tuesday 17th of April 2012 11:06:07 AM
Old 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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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)
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