Sponsored Content
Top Forums Shell Programming and Scripting add one hour to each time field Post 302721031 by panyam on Thursday 25th of October 2012 05:47:17 AM
Old 10-25-2012
add one hour to each time field

Hello All,

Is there any *easy* and efficient way to add "one hour" to few fields in a file? . I have done this using a python script and it has hit with performance issues.

I have around 200mi of records, which I need to modify and send across in one hour.

Code:
 
sample input:
'2012-10-17 08:58:00.000','2012-08-17 10:29:56.000','2012-08-17 23:59:55.000','2012-10-17 06:58:00.000'
 
expexted output:
'2012-10-17 09:58:00.000','2012-08-17 11:29:56.000','2012-08-18 00:59:55.000','2012-10-17 07:58:00.000'

Thanks in advance.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

getting hour minus the current time

Can some one help me getting last hour of the current time with date command in a script. (7 Replies)
Discussion started by: shehzad_m
7 Replies

2. Linux

How to add and extra hour to the start time

Hi Actually what am trying to ask is , i have an shell script ,now i want to run this shell script for one hour continuously and after one hour it has to stop automatically. can any one suggest me how to automate the shell script ? we tried wth the getting the start time and add ing an hour... (8 Replies)
Discussion started by: lalitka
8 Replies

3. UNIX for Advanced & Expert Users

How to set NTP server to +1 hour time?

Hello, colleges! I need to synchronize time on several thousands device (UTM-1 Edge Appliances - All inclusive, all secure, all branch offices.) which don`t understand summer time at all. But in my country summer time are used. I plan to sync it with NTP server with modificated time: plus one... (2 Replies)
Discussion started by: chmelvv
2 Replies

4. AIX

Time getting reduced by 1 hour

I am setting TZ=EST5EDT,M3.2.0/02:00:00,M11.1.0/02:00:00 Then Setting the date to Mar 14 01:40 EST date 0314014010 Sun Mar 14 01:40:36 EDT 2010 Note that it show it EST. According to my TZ variable 01:40 Should be in EST only. On executing date command once again it shows date Sun Mar... (4 Replies)
Discussion started by: januuj23
4 Replies

5. UNIX for Dummies Questions & Answers

How do i set time in 24 hour format?

Currently whenever i run date command output is shown like Mon Apr 12 05:17:21 IST 2010 When its 17:17 Here. How would i change it so that it should show. Mon Apr 12 17:17:21 IST 2010 (8 Replies)
Discussion started by: pinga123
8 Replies

6. Shell Programming and Scripting

Doing math on 24 hour time base

I'm trying to do some simple math on a 24 hour time base. The time is in the format of HM (HoursMinutes) For example: 2330 #23:30 1800 #18:00 730 #07:30 my problem is with the single-digit hours. If the time is 2200, I use this code: baseTime=2200 minutes=${baseTime:2:3}... (3 Replies)
Discussion started by: jondecker76
3 Replies

7. UNIX for Dummies Questions & Answers

How to add an hour or a minute to a time?

Hi, The timestamp is June 06 2011 11:05AM i need 2 results. first, an hour added to it, June 06 2011 12:05AM second, a minute added to it, June 06 2011 11:06AM How can i do this? Also when it reaches 12:59, it needs to start from 1 again without giving the output as 13:00. it... (17 Replies)
Discussion started by: irudayaraj
17 Replies

8. Shell Programming and Scripting

Incrementing a time by one hour issues

Hi all, I need your help to increment a time by one hour. The difficulty is the time is in a string format and not a value cat file | awk '{print $1,$2}' 09/02/2011 20:11 09/03/2011 20:11 I want to change the time to be as follows 09/02/2011 21:11 or even 09/02/2011 20:21 Can... (2 Replies)
Discussion started by: Junes
2 Replies

9. AIX

crontab 1 hour off from current time

This is a new one on me. We upgraded a system from AIX 5.3 TL 7 to 6.1 TL 7 yesterday. The app people notified us that their cron jobs weren't running at the right time. So I made a test cron entry and here's what I've found: # crontab -l * * * * * /usr/bin/date > /tmp/test.log 2>&1 # cat... (2 Replies)
Discussion started by: homeyjoe
2 Replies

10. Shell Programming and Scripting

How to convert 24 hour time to 12 hour timing?

Hi friends, I want to convert 24 hour timing to 12 hour please help me... my data file looks like this.. 13-Nov-2011 13:27:36 15.32044 72.68502 13-Nov-2011 12:08:31 15.31291 72.69807 16-Nov-2011 01:16:54 15.30844 72.74028 15-Nov-2011 20:09:25 15.35096 ... (13 Replies)
Discussion started by: nex_asp
13 Replies
funtbl(1)							SAORD Documentation							 funtbl(1)

NAME
funtbl - extract a table from Funtools ASCII output SYNOPSIS
funtable [-c cols] [-h] [-n table] [-p prog] [-s sep] <iname> DESCRIPTION
[NB: This program has been deprecated in favor of the ASCII text processing support in funtools. You can now perform fundisp on funtools ASCII output files (specifying the table using bracket notation) to extract tables and columns.] The funtbl script extracts a specified table (without the header and comments) from a funtools ASCII output file and writes the result to the standard output. The first non-switch argument is the ASCII input file name (i.e. the saved output from funcnts, fundisp, funhist, etc.). If no filename is specified, stdin is read. The -n switch specifies which table (starting from 1) to extract. The default is to extract the first table. The -c switch is a space-delimited list of column numbers to output, e.g. -c "1 3 5" will extract the first three odd-numbered columns. The default is to extract all columns. The -s switch specifies the separator string to put between columns. The default is a single space. The -h switch specifies that column names should be added in a header line before the data is output. With- out the switch, no header is prepended. The -p program switch allows you to specify an awk-like program to run instead of the default (which is host-specific and is determined at build time). The -T switch will output the data in rdb format (i.e., with a 2-row header of column names and dashes, and with data columns separated by tabs). The -help switch will print out a message describing program usage. For example, consider the output from the following funcnts command: [sh] funcnts -sr snr.ev "ann 512 512 0 9 n=3" # source # data file: /proj/rd/data/snr.ev # arcsec/pixel: 8 # background # constant value: 0.000000 # column units # area: arcsec**2 # surf_bri: cnts/arcsec**2 # surf_err: cnts/arcsec**2 # summed background-subtracted results upto net_counts error background berror area surf_bri surf_err ---- ------------ --------- ------------ --------- --------- --------- --------- 1 147.000 12.124 0.000 0.000 1600.00 0.092 0.008 2 625.000 25.000 0.000 0.000 6976.00 0.090 0.004 3 1442.000 37.974 0.000 0.000 15936.00 0.090 0.002 # background-subtracted results reg net_counts error background berror area surf_bri surf_err ---- ------------ --------- ------------ --------- --------- --------- --------- 1 147.000 12.124 0.000 0.000 1600.00 0.092 0.008 2 478.000 21.863 0.000 0.000 5376.00 0.089 0.004 3 817.000 28.583 0.000 0.000 8960.00 0.091 0.003 # the following source and background components were used: source_region(s) ---------------- ann 512 512 0 9 n=3 reg counts pixels sumcnts sumpix ---- ------------ --------- ------------ --------- 1 147.000 25 147.000 25 2 478.000 84 625.000 109 3 817.000 140 1442.000 249 There are four tables in this output. To extract the last one, you can execute: [sh] funcnts -s snr.ev "ann 512 512 0 9 n=3" | funtbl -n 4 1 147.000 25 147.000 25 2 478.000 84 625.000 109 3 817.000 140 1442.000 249 Note that the output has been re-formatted so that only a single space separates each column, with no extraneous header or comment informa- tion. To extract only columns 1,2, and 4 from the last example (but with a header prepended and tabs between columns), you can execute: [sh] funcnts -s snr.ev "ann 512 512 0 9 n=3" | funtbl -c "1 2 4" -h -n 4 -s " " #reg counts sumcnts 1 147.000 147.000 2 478.000 625.000 3 817.000 1442.000 Of course, if the output has previously been saved in a file named foo.out, the same result can be obtained by executing: [sh] funtbl -c "1 2 4" -h -n 4 -s " " foo.out #reg counts sumcnts 1 147.000 147.000 2 478.000 625.000 3 817.000 1442.000 SEE ALSO
See funtools(7) for a list of Funtools help pages version 1.4.2 January 2, 2008 funtbl(1)
All times are GMT -4. The time now is 03:39 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy