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Top Forums UNIX for Dummies Questions & Answers Converting regular time to CTIME Post 26654 by LivinFree on Wednesday 21st of August 2002 10:38:52 PM
Old 08-21-2002
Try looking at the man page for your implementation of the date command.
On a Linux system, you can get (for example) the number of seconds from the epoch like this:
Code:
date +%s

Or if you want the date yesterday in YYYYMMDD format, you can do this:
Code:
date --date="1 day ago" +%Y%m%d

Note: the --date option is specific to GNU date, as far as I know, and is not portable...

If you have any other questions about date handling, please respond, as I have been doing a lot of tedious date juggling in scripts lately.

If you do reply, please include your operating system (available via the uname -a command), and if possible, which "date" you are using. Also, please give examples of which formats you are converting from, and the expected output.
 

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NetSDS::Util::DateTime(3pm)				User Contributed Perl Documentation			       NetSDS::Util::DateTime(3pm)

NAME
NetSDS::Util::DateTime - common date/time processing routines SYNOPSIS
use NetSDS::Util::DateTime; print "Current date: " . date_now(); DESCRIPTION
This package provides set of routines for date and time processing. EXPORTED FUNCTIONS
date_now_array([TIME]) Returns array of date items for given date. If source date is not set current date used. date_now([TIME]) Return [given] date as string. 2001-12-23 14:39:53 date_now_iso8601([TIME]) Return date as ISO 8601 string. 20011223T14:39:53Z <http://en.wikipedia.org/wiki/ISO_8601> http://www.w3.org/TR/NOTE-datetime <http://www.w3.org/TR/NOTE-datetime> date_strip(DATE) Trim miliseconds from date. date_date(DATE) Trim time part from date. date_time(DATE) Trim date part from date. time_from_string($string) Return parsed date/time structure. date_from_string($string) Return date from string representation. date_inc([INCREMENT, [TIME]]) Return date incremented with given number of seconds. date_inc_string([INCREMENT, [TIME]]) Return string representation of date incremented with given number of seconds. EXAMPLES
None yet BUGS
Unknown yet SEE ALSO
Date::Parse, Date::Format TODO
Import stuff from Wono project AUTHOR
Valentyn Solomko <val@pere.org.ua> Michael Bochkaryov <misha@rattler.kiev.ua> perl v5.12.4 2011-08-27 NetSDS::Util::DateTime(3pm)
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