Sponsored Content
Top Forums Shell Programming and Scripting Valid separator in time and date format Post 303035796 by jim mcnamara on Monday 3rd of June 2019 12:12:01 PM
Old 06-03-2019
Where I ran into real world problems is with free form entry on date (as text) fields. So. The mix provided by the OP was not realistic based on my experience.

I had to correct several hundred million rows of almost unbelievable garbage dates in a transaction table. The data was entered by users in several countries.

Example: "Apr 4". Okay. What year? I had to use the table's unique sequence and search nearby to find temporally close rows until I found a year. So for each
bizarre date problem we ran a separate script with a subsequent validation script. Took several weeks to fix the mess.

Overall the problems got better run times as more neighbors were "fixed" - in this one kind of example problem.
This User Gave Thanks to jim mcnamara For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

format date/time presentation

1) i am trying to print the timeframe of a log file using the start/end date/time being extracted from the file itself. my problem is how to convert the following numeric date format to the one that i prefer: Start time: 0204161129 End time : 0204171431 into: Start time: Apr 16 2002... (6 Replies)
Discussion started by: apalex
6 Replies

2. Shell Programming and Scripting

Convert Epoch time format to normal date time format in the same file

I have a file named "suspected" with series of line like these : {'protocol': 17, 'service': 'BitTorrent KRPC', 'server': '219.78.120.166', 'client_port': 52044, 'client': '10.64.68.44', 'server_port': 8291, 'time': 1226506312L, 'serverhostname': ''} {'protocol': 17, 'service': 'BitTorrent... (3 Replies)
Discussion started by: rk4k
3 Replies

3. Shell Programming and Scripting

Date and Time format

I want to append current date and time to a file name like filename_090920091210. If I use filename_`date +%d%m%Y%T`, the ouput is filename_0909200912:10:33. How to format this as filename_090920091210. Please let me know. Thanks in advance. (3 Replies)
Discussion started by: srimenon09
3 Replies

4. Shell Programming and Scripting

date and time in mm/dd/yyyy hh:mm format

Frens, I have a logfile which has got manier things in it and somewer in that file i have a date in mm/dd/yyyy hh:mm format.... I just need to get the date and time nothing else.... i have searched in this forum for it but got only date in mm-dd-yyyy format.. but i need to search for... (10 Replies)
Discussion started by: smarty86
10 Replies

5. Shell Programming and Scripting

awk & date time format

This gives: grep "qprt -o -dp -N 1 -P" printfile.log.1216 |awk '{print $7, $9}' |grep lpc1z The output like below: lpc1z /cerner/d_prod/print/ccltemp4235396d030a.dat.tmp.1216075330] lpc1z /cerner/d_prod/print/ccltemp4235396d036a.dat.tmp.1216075634] lpc1z... (2 Replies)
Discussion started by: Daniel Gate
2 Replies

6. UNIX for Dummies Questions & Answers

Shell Scripts - shows today’s date and time in a better format than ‘date’ (Uses positional paramete

Hello, I am trying to show today's date and time in a better format than ‘date' (Using positional parameters). I found a command mktime and am wondering if this is the best command to use or will this also show me the time elapse since 1/30/70? Any help would be greatly appreciated, Thanks... (3 Replies)
Discussion started by: citizencro
3 Replies

7. Shell Programming and Scripting

Military type format date/time conversion

Hello All, I have a requirement to convert a 12 hour format to 24 hour time format and the sample input /out put is below Input Time format : Nov 2 2011 12:16AM Out Put Format : Nov 2 2011 0:16 Input : Nov 2 2011 4:16PM Out Put: Nov 2 2011 16:16 I have done this using a... (6 Replies)
Discussion started by: jambesh
6 Replies

8. HP-UX

DATE and TIME format help in HP-UX

Hello, I have date format as shown in red color below Fri, Sep 12, 2012 08:38:05 PM Can anyone help me with command to change this format to yyyy-mm-dd and HH:MM:SS Note: Time should be in 24 hours format I really appreciate your help!! Thanks, Elavarasan (4 Replies)
Discussion started by: Elavarasan
4 Replies

9. Shell Programming and Scripting

Change the date and time format in UNIX script.

Hi, I am extracting a date string from the source file like this : 06/05/2014 16:04:00 I want to change it to 05-JUN-14 04.05.00.000000000 PM I basically store the date in a variable. I got solutions to change date in dd-mmm-yyyy format using tr but I guess it works only with the "date"... (8 Replies)
Discussion started by: Varshha
8 Replies

10. Shell Programming and Scripting

Check if time format is valid

How can I validate if time (HH:MM:SS) argument is valid? I got this from web but I can't modify it to exit the script if the time argument is invalid. echo $1 | awk -F ':' '{ print ($1 <= 23 && $2 <= 59 && $3 <= 59) ? "good" : "bad" }' ex: ./script.ksh 12:34:21 = okay ./script.ksh... (10 Replies)
Discussion started by: erin00
10 Replies
CAL(1)							    BSD General Commands Manual 						    CAL(1)

NAME
cal, ncal -- displays a calendar and the date of easter SYNOPSIS
cal [-jy] [[month] year] cal [-j] -m month [year] ncal [-jJpwy] [-s country_code] [[month] year] ncal [-Jeo] [year] DESCRIPTION
The cal utility displays a simple calendar in traditional format and ncal offers an alternative layout, more options and the date of easter. The new format is a little cramped but it makes a year fit on a 25x80 terminal. If arguments are not specified, the current month is dis- played. The options are as follows: -J Display Julian Calendar, if combined with the -e option, display date of easter according to the Julian Calendar. -e Display date of easter (for western churches). -j Display Julian days (days one-based, numbered from January 1). -m month Display the specified month. -o Display date of orthodox easter (Greek and Russian Orthodox Churches). -p Print the country codes and switching days from Julian to Gregorian Calendar as they are assumed by ncal. The country code as deter- mined from the local environment is marked with an asterisk. -s country_code Assume the switch from Julian to Gregorian Calendar at the date associated with the country_code. If not specified, ncal tries to guess the switch date from the local environment or falls back to September 2, 1752. This was when Great Britain and her colonies switched to the Gregorian Calendar. -w Print the number of the week below each week column. -y Display a calendar for the specified year. A single parameter specifies the year (1 - 9999) to be displayed; note the year must be fully specified: ``cal 89'' will not display a calen- dar for 1989. Two parameters denote the month and year; the month is either a number between 1 and 12, or a full or abbreviated name as specified by the current locale. Month and year default to those of the current system clock and time zone (so ``cal -m 8'' will display a calendar for the month of August in the current year). A year starts on Jan 1. SEE ALSO
calendar(3), strftime(3) HISTORY
A cal command appeared in Version 5 AT&T UNIX. The ncal command appeared in FreeBSD 2.2.6. AUTHORS
The ncal command and manual were written by Wolfgang Helbig <helbig@FreeBSD.org>. BUGS
The assignment of Julian--Gregorian switching dates to country codes is historically naive for many countries. BSD
November 23, 2004 BSD
All times are GMT -4. The time now is 06:08 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy