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Top Forums UNIX for Advanced & Expert Users Help with touch: bad time specification Post 302837995 by MadeInGermany on Sunday 28th of July 2013 12:24:11 PM
Old 07-28-2013
Thanks Scott and Don for pointing out the problems with date calculations!
Another thanks to Don for a general C solution!
Here is a (not so general) native Perl solution
Code:
TTIME=`perl -e '
($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst)=localtime(time-3600);
printf "%04d%02d%02d%02d%02d\n",$year+1900,$mon+1,$mday,$hour,$min;
'`
echo $TTIME

 

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Time::localtime(3pm)					 Perl Programmers Reference Guide				      Time::localtime(3pm)

NAME
Time::localtime - by-name interface to Perl's built-in localtime() function SYNOPSIS
use Time::localtime; printf "Year is %d ", localtime->year() + 1900; $now = ctime(); use Time::localtime; use File::stat; $date_string = ctime(stat($file)->mtime); DESCRIPTION
This module's default exports override the core localtime() function, replacing it with a version that returns "Time::tm" objects. This object has methods that return the similarly named structure field name from the C's tm structure from time.h; namely sec, min, hour, mday, mon, year, wday, yday, and isdst. You may also import all the structure fields directly into your namespace as regular variables using the :FIELDS import tag. (Note that this still overrides your core functions.) Access these fields as variables named with a preceding "tm_" in front their method names. Thus, "$tm_obj->mday()" corresponds to $tm_mday if you import the fields. The ctime() function provides a way of getting at the scalar sense of the original CORE::localtime() function. To access this functionality without the core overrides, pass the "use" an empty import list, and then access function functions with their full qualified names. On the other hand, the built-ins are still available via the "CORE::" pseudo-package. NOTE
While this class is currently implemented using the Class::Struct module to build a struct-like class, you shouldn't rely upon this. AUTHOR
Tom Christiansen perl v5.16.3 2013-02-26 Time::localtime(3pm)
All times are GMT -4. The time now is 01:25 PM.
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