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Full Discussion: How to select all files added to a directory in the past 5 mins (HP-UX)?
Top Forums Shell Programming and Scripting How to select all files added to a directory in the past 5 mins (HP-UX)? Post 302935502 by rbatte1 on Tuesday 17th of February 2015 06:31:59 AM
Old 02-17-2015
I would use perl too, but to get the required start time. We can then create a reference file and use find based on that to select files.

Assuming you can't just use "date +%s", something like:-
Code:
#!/bin/ksh


date '+%Y %m %d %H %M %S' | read in_Y in_m in_d in_H in_M in_S                                   # Get current time values 
((in_m=$in_m-1))                                                                                 # Reduce month by one as epoch counts from 1/1/1970 as month zero

perl -e "use Time::Local; print timelocal($in_S,$in_M,$in_H,$in_d,$in_m,$in_Y), ;" | read cur_S  # Get current time in seconds since epoch
((old_S=$cur_S-300))                                                                             # Go back five minutes (in seconds)

perl -e 'use POSIX qw(strftime);\
print scalar(strftime "%Y %m %d %H %M %S", localtime $ARGV[0]), "\n";' $old_S | read Y m d H M S # Display answer in required format to be read in

touch -mt ${Y}${m}${d}${H}${M}.${S} /tmp/ref_file                                                # Create reference file

find . -type f -newer /tmp/ref_file                                                              # Find required files

It's a bit messy, but I hope you can see what is being done and why.


Does this help?


Robin
This User Gave Thanks to rbatte1 For This Post:
mattkoz
 

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LEARN ABOUT OSX

time::epoch

Epoch(3)						User Contributed Perl Documentation						  Epoch(3)

NAME

       Time::Epoch - Convert between Perl epoch and other epochs

SYNOPSIS

	 #!/usr/bin/perl -wl
	 use Time::Epoch;
	 my $perlsec  = 966770660;  # Sun Aug 20 07:24:21 2000 -0400 on Mac OS
	 my $epochsec = perl2epoch($perlsec, 'macos', '-0400');
	 my $perlsec2 = epoch2perl($epochsec, 'macos', '-0400');

	 print $perlsec;
	 print $perlsec2;
	 print $epochsec;
	 # correct time on Unix:
	 print scalar localtime $perlsec;
	 # correct time on Mac OS (-0400):
	 print scalar localtime $epochsec;

DESCRIPTION

       Exports two functions, "perl2epoch" and "epoch2perl".  Currently only goes between Perl (Unix) epoch and Mac OS epoch.  This is in
       preparation for an eventual move of Perl to its own universal epoch, so we can get the system epoch of any platform that differs from
       Perl's.

   Epochs
       o   macos

	   Takes additional optional parameter of time zone differential.  If time zone differential not supplied, we guess by getting the
	   different between "localtime" and "gmtime" with <Time::Local::timelocal>.

BUGS

       o   Hm.	With the above test, "scalar localtime $perlsec" under my Linux box and "scalar localtime $epochsec" under my Mac OS box are off
	   by one second from each other.  Maybe a leap second thing?  Odd.

AUTHOR

       Chris Nandor <pudge@pobox.com>, http://pudge.net/

       Copyright (c) 2000-2003 Chris Nandor.  All rights reserved.  This program is free software; you can redistribute it and/or modify it under
       the terms of the Artistic License, distributed with Perl.

SEE ALSO

       perl(1), perlport(1), Time::Local.

perl v5.16.2							    2003-05-21								  Epoch(3)
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