Sponsored Content
Top Forums Shell Programming and Scripting Perl script: extracting numbers from a date formatt Post 302545444 by yazu on Monday 8th of August 2011 10:44:03 AM
Old 08-08-2011
You can use usual string sort for dates in this format. But if you want extract them use this perl regex:
Code:
echo 'the date is in the form of "2010-05-24T09:48:55-04"' |
perl -lne '/(\d{4})-(\d{2})-(\d{2})/ && print "$1$2$3"'

This User Gave Thanks to yazu For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Perl: Extracting date from file name and comparing with current date

I need to extract the date part from the file name (20080221 in this ex) and compare it with the current date and delete it, if it is a past date. $file = exp_ABCD4_T-2584780_upto_20080221.dmp.Z really appreciate any help. thanks mkneni (4 Replies)
Discussion started by: MKNENI
4 Replies

2. Shell Programming and Scripting

extracting numbers from strings

Hello all, I am being dumb with this and I know there is a simple solution. I have a file with the follwing lines bc stuff (more)...............123 bc stuffagain (moretoo)............0 bc stuffyetagain (morehere)......34 failed L3 thing..............1 failed this... (2 Replies)
Discussion started by: gobi
2 Replies

3. UNIX for Dummies Questions & Answers

Extracting numbers and multipling

Hi All, I have searched the forum but couldn't find exactly what I need. Hopefully someone may be able to help. I'm trying to put a script together that will extract numbers from a text file and multiply them by, for example 1.5 or 1.2 Sample file looks like this...... (1 Reply)
Discussion started by: speedfreak
1 Replies

4. Shell Programming and Scripting

Extracting numbers from a string

Hello Everyone, i have quick question. I have file names like: bin_map300.asc and I would like to extract grid300. My approach so far: name=bin_map300.asc echo ${name%%.*} echo ${name##*_} I am stuck combining the two. Any help would be appreciated. (3 Replies)
Discussion started by: creamcheese
3 Replies

5. UNIX for Dummies Questions & Answers

Extracting numbers from a String

Hi all, I'm a new programmer to shell script... and I have no idea how to use substring. I want to extract the numbers from the following string and place it into a variable: "170 unique conformations found" The numbers can be more than three digits depending on the case. I just want to... (10 Replies)
Discussion started by: ah7391
10 Replies

6. Shell Programming and Scripting

Perl script - Help me extracting a string

I have input like this : TNS Ping Utility for Linux: Version 11.2.0.1.0 - Production on 07-FEB-2012 04:19:45 Copyright (c) 1997, 2009, Oracle. All rights reserved. Used parameter files: /t3local_apps/apps/oracle/product/11.2.0/network/admin/sqlnet.ora Used TNSNAMES adapter to resolve... (3 Replies)
Discussion started by: dnam9917
3 Replies

7. Shell Programming and Scripting

extracting non-zero pairs of numbers from each row

Hi all, I do have a tab delimited file a1 a2 b1 b2 c1 c2 d1 d2 e1 e2 f1 f2 0 0 123 546 0 0 0 0 0 0 0 0 0 0 345 456 765 890 902 1003 0 0 0 0 534 768 0 0 0 0 0 0 0 0 0 0 0 0 0 0 456 765 0 0 0 0 0 0 0 0 0 0 0 0 12 102 0 0 0 0 456 578 789 1003 678 765 345 400 801 1003 134 765... (5 Replies)
Discussion started by: Lucky Ali
5 Replies

8. Shell Programming and Scripting

Extracting numbers

Hi I am part of a academic organization and I want to send a fax to the students however there must be a quicker way to get the fax numbers extracted from the online forms they sent me. The file looks like this (numbers are fake in order to protect identity): Biochemistry Major Michael... (3 Replies)
Discussion started by: phil_heath
3 Replies

9. Shell Programming and Scripting

How to remove the numbers in a file in perl script?

Thanks (1 Reply)
Discussion started by: Raysf
1 Replies

10. Shell Programming and Scripting

sed extracting numbers

I have number 192.168.21.8. I want to extract from this number with sed 21 and 8 to variables a and b. Any Ideas? I did like 's/\(192.168.\)/ /' but its wrong :( (6 Replies)
Discussion started by: Natalie
6 Replies
Date::Parse(3)						User Contributed Perl Documentation					    Date::Parse(3)

NAME
Date::Parse - Parse date strings into time values SYNOPSIS
use Date::Parse; $time = str2time($date); ($ss,$mm,$hh,$day,$month,$year,$zone) = strptime($date); DESCRIPTION
"Date::Parse" provides two routines for parsing date strings into time values. str2time(DATE [, ZONE]) "str2time" parses "DATE" and returns a unix time value, or undef upon failure. "ZONE", if given, specifies the timezone to assume when parsing if the date string does not specify a timezone. strptime(DATE [, ZONE]) "strptime" takes the same arguments as str2time but returns an array of values "($ss,$mm,$hh,$day,$month,$year,$zone)". Elements are only defined if they could be extracted from the date string. The $zone element is the timezone offset in seconds from GMT. An empty array is returned upon failure. MULTI-LANGUAGE SUPPORT Date::Parse is capable of parsing dates in several languages, these include English, French, German and Italian. $lang = Date::Language->new('German'); $lang->str2time("25 Jun 1996 21:09:55 +0100"); EXAMPLE DATES
Below is a sample list of dates that are known to be parsable with Date::Parse 1995:01:24T09:08:17.1823213 ISO-8601 1995-01-24T09:08:17.1823213 Wed, 16 Jun 94 07:29:35 CST Comma and day name are optional Thu, 13 Oct 94 10:13:13 -0700 Wed, 9 Nov 1994 09:50:32 -0500 (EST) Text in ()'s will be ignored. 21 dec 17:05 Will be parsed in the current time zone 21-dec 17:05 21/dec 17:05 21/dec/93 17:05 1999 10:02:18 "GMT" 16 Nov 94 22:28:20 PST LIMITATION
Date::Parse uses Time::Local internally, so is limited to only parsing dates which result in valid values for Time::Local::timelocal. This generally means dates between 1901-12-17 00:00:00 GMT and 2038-01-16 23:59:59 GMT BUGS
When both the month and the date are specified in the date as numbers they are always parsed assuming that the month number comes before the date. This is the usual format used in American dates. The reason why it is like this and not dynamic is that it must be deterministic. Several people have suggested using the current locale, but this will not work as the date being parsed may not be in the format of the current locale. My plans to address this, which will be in a future release, is to allow the programmer to state what order they want these values parsed in. AUTHOR
Graham Barr <gbarr@pobox.com> COPYRIGHT
Copyright (c) 1995-2009 Graham Barr. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. POD ERRORS
Hey! The above document had some coding errors, which are explained below: Around line 325: You forgot a '=back' before '=head1' perl v5.18.2 2009-12-12 Date::Parse(3)
All times are GMT -4. The time now is 06:03 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy