Sponsored Content
Top Forums Shell Programming and Scripting finding date numeral from file and check the validity of date format Post 302574338 by manas_ranjan on Thursday 17th of November 2011 06:01:42 AM
Old 11-17-2011
thanks KlashXX and Franklin for your suggestion. but unfortunatley I can't use perl in my case .
and I found Frankling sugesstion working for all type of files .

By the mean time I tried below option

Code:
echo $name | awk -F'[^0-9]' '{  for(i=1;i<=NF;++i) if($i ~ /[[:digit:]]/) print $i}'

which is also works for almost all the conditions except if the filename is
xpnl_hypo_reu_miplvdone_11-17-2011.csv i.e if in any characters are in between then o/p is
Code:
11
17
2011

can anyone suggest how to improve this liner.I don't care if any - removed between number but atleast it should be numeral in one line not line after another.

anyway can anyone suggest how to validate the date o/p please??
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Check the format of Date

Hi, I have a date field in my input file. I just want to check if its in the format "DD-MM-YYYY". Is there any command which can achieve this? Thanks and Regards, Abhishek (2 Replies)
Discussion started by: AAA
2 Replies

2. Shell Programming and Scripting

convert date format to mysql date format in log file

I have a comma delimited log file which has the date as MM/DD/YY in the 2nd column, and HH:MM:SS in the 3rd column. I need to change the date format to YYYY-MM-DD and merge it with the the time HH:MM:SS. How will I got about this? Sample input 02/27/09,23:52:31 02/27/09,23:52:52... (3 Replies)
Discussion started by: hazno
3 Replies

3. Shell Programming and Scripting

Check input date format?

how to check input date format. for example $input_date must be in format dd.mm.gg script is execute like this: bin/script1.sh 14.12.2009 script1.sh code: #!/bin/sh input_date=$1 CMD="/app/si/test/test.sh $input_date" echo "*****" $CMD (2 Replies)
Discussion started by: waso
2 Replies

4. Shell Programming and Scripting

finding the previous day date and creating a file with date

Hi guys, I had a scenario... 1. I had to get the previous days date in yyyymmdd format 2. i had to create a file with Date inthe format yyyymmdd.txt format both are different thanks guys in advance.. (4 Replies)
Discussion started by: apple2685
4 Replies

5. Shell Programming and Scripting

Finding files before a certain date with predefined format

Guys, I have an input file such as below I would like to know how i would be able to find items created before 2011-10-01 Appreciate any expert advice. Thanks. (3 Replies)
Discussion started by: aismann
3 Replies

6. Shell Programming and Scripting

Converting a date to friday date and finding Min/Max date

Dear all, I have 2 questions. I have a file with many rows which has date of the format YYYYMMDD. 1. I need to change the date to that weeks friday date(Ex: 20120716(monday) to 20120720). Satuday/Sunday has to be changed to next week friday date too. 2. After converting the date to... (10 Replies)
Discussion started by: 2001.arun
10 Replies

7. Shell Programming and Scripting

How to check if date format is correct?

Hi! how do i know if the input is the same as the required date format? the date should be dd/mm/YYYY ex. 2/3/2012 or 15/11/2012 all the following conditions must return an error: *input of string *day is > 31 or < 1 *month is > 12 or < 1 *year is < 2013 suppose the date format is stored... (1 Reply)
Discussion started by: angilulu
1 Replies

8. UNIX for Dummies Questions & Answers

Rename all Files in a UNIX Directory from one date format to another date format

Hi Unix Gurus, I would like to rename several files in a Unix Directory . The filenames can have more than 1 underscore ( _ ) and the last underscore is always followed by a date in the format mmddyyyy. The Extension of the files can be .txt or .pdf or .xls etc and is case insensitive ie... (1 Reply)
Discussion started by: pchegoor
1 Replies

9. Shell Programming and Scripting

Date validity check

hi All, i have file in which it has 2000 records like, test.txt ==== 2011-03-01 2011-03-01 2011-03-01 2011-03-01 2011-03-01 2011-03-02 2011/03/02 previously i used for loop to find the date check like below, for i in `cat test.txt` do d=`echo $i | cut -c9-10| sed 's/^0*//'`;... (11 Replies)
Discussion started by: mechvijays
11 Replies

10. Shell Programming and Scripting

Date: invalid date trying to set Linux date in specific format

i try to set linux date & time in specific format but it keep giving me error Example : date "+%d-%m-%C%y %H:%M:%S" -d "19-01-2017 00:05:01" or date +"%d-%m-%C%y %H:%M:%S" -d "19-01-2017 00:05:01" keep giving me this error : date: invalid date ‘19-01-2017 00:05:01' Please use CODE tags... (7 Replies)
Discussion started by: umen
7 Replies
English(3pm)						 Perl Programmers Reference Guide					      English(3pm)

NAME
English - use nice English (or awk) names for ugly punctuation variables SYNOPSIS
use English; use English qw( -no_match_vars ) ; # Avoids regex performance penalty # in perl 5.16 and earlier ... if ($ERRNO =~ /denied/) { ... } DESCRIPTION
This module provides aliases for the built-in variables whose names no one seems to like to read. Variables with side-effects which get triggered just by accessing them (like $0) will still be affected. For those variables that have an awk version, both long and short English alternatives are provided. For example, the $/ variable can be referred to either $RS or $INPUT_RECORD_SEPARATOR if you are using the English module. See perlvar for a complete list of these. PERFORMANCE
NOTE: This was fixed in perl 5.20. Mentioning these three variables no longer makes a speed difference. This section still applies if your code is to run on perl 5.18 or earlier. This module can provoke sizeable inefficiencies for regular expressions, due to unfortunate implementation details. If performance matters in your application and you don't need $PREMATCH, $MATCH, or $POSTMATCH, try doing use English qw( -no_match_vars ) ; . It is especially important to do this in modules to avoid penalizing all applications which use them. perl v5.18.2 2014-01-06 English(3pm)
All times are GMT -4. The time now is 11:11 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy