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12 paź 2011 · perl -MPOSIX -pwe 's{^(\d{2})/(\d{2})/(\d{4}) (\d{2}):(\d{2}) }{mktime(0,$5,$4,$1,$2-1,$3-1900)." "}e;' Feed it the file on standard input and it will output the changed version to standard output.
4 lut 2013 · I want to just keep today's log in logs directory. use POSIX qw(mktime); use Time::Local; my $file="20130204.log"; print "$file\t"; open my $fh,'<',$file; my $modtime = (stat($fh))[9]; print "modtime:$modtime\n"; my $time = timelocal(59,59,23,4,2,2013);
#mktime. Convert date/time info to a calendar time. Synopsis: mktime(sec, min, hour, mday, mon, year, wday = 0, yday = 0, isdst = -1) The month (mon), weekday (wday), and yearday (yday) begin at zero, i.e., January is 0, not 1; Sunday is 0, not 1; January 1st is 0, not 1.
For GMT instead of local time use the gmtime builtin. See also the Time::Local module (for converting seconds, minutes, hours, and such back to the integer value returned by time), and the POSIX module's mktime function. Portability issues: "localtime" in perlport.
sub new_caching_mktime { my ($sec, $min, $hour, $day, $mon, $year) = @_; my $time; my $curinput = "$sec:$min:$hour:$day:$mon:$year"; if ( $curinput eq $saveinput ) { $time = $savetime; } else { $time = POSIX::mktime( $sec, $min, $hour, $day, $mon, $year ); $savetime = $time; $saveinput = $curinput; } return $time; }
6 wrz 2023 · Description. There currently is a POSIX::mktime which reverts the built-in localtime, but no POSIX::timegm to revert the built-in gmtime. timegm has been added to ISO C23, and while the upcoming (almost finished) POSIX release (Issue 8) bases on ISO C17, chances are it’ll also have timegm, and if not then Issue 9 will definitely have it.
13 mar 2003 · Perl’s Built-in Date/Time Functionality. Perl has some built-in functionality for handling dates and times. This functionality includes: time() A function that returns the current epoch time. localtime() and gmtime() These functions convert an epoch time into a set of components representing the local time.
