Sponsored Content
Top Forums Shell Programming and Scripting Changing date using bash script Post 303023048 by novilatte on Tuesday 11th of September 2018 07:33:53 AM
Old 09-11-2018
Changing date using bash script

I am trying to change dates in a bash script.

I have a start time and an endtime and want to increment the times. Basically
the month and day have to be incremented in a loop to create two strings, stm and
etm defining the start and end times.

Code:
stm="2014-05-13T00:00:00"
etm="2014-05-14T00:00:00"

------ Post updated at 06:33 AM ------

I have started doing this bash details for constructing the start and end strings.

Code:
# Covering months May to December 
for m in {5..12}; do
  mth=$((mth+1))
  echo "mth: $mth"
  for dy in {1..30}; do
    day=$((day+1))
    echo "day: $day"
  done
  echo ""
done

# Covering months Jan to April 
for m in {1..4}; do
  mth=$((mth+1))
  echo "mth: $mth"
  for dy in {1..30}; do
    day=$((day+1))
    echo "day: $day"
  done
  echo ""
done

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Changing Creation Date to a Prespecified Date of a File In Unix

Dear Expert, Is there a command to do that in Unix? In such a way that we don't need to actually "write" or modified the content. -- monkfan (4 Replies)
Discussion started by: monkfan
4 Replies

2. Shell Programming and Scripting

Bash script: issue changing directories in script

I am working on a script that checks two arguments at the command line. The first argument is a search pattern, the second can be a file or a directory, if it is a file a second script is called that checks it for the search pattern. If the second argument is a directory, it checks for the search... (5 Replies)
Discussion started by: Breakology
5 Replies

3. Shell Programming and Scripting

Changing File Time Stamp (Bash Script)

I need some help recovering from a "slight" screwup. We just moved 3 TB of data from one RAID Array to another. Low lever archive files. This was done with a regular cp (for some reason) and now we have lost all the timestamps on the files, and we urgently need to get the timestamps back on these... (7 Replies)
Discussion started by: chj
7 Replies

4. Shell Programming and Scripting

changing cron using bash script

How can I change the cron entries only for ABC and XYZ from dosomething_1.0.sh to nowchanged_2.0 using a bash script ? Any help will be appreciated. # # ABC 00,05,10,15,20,25,30,35,40,45,50,55 * * * * /mydir/dosomething_1.0.sh 1>/dev/null 2>&1 # # ## # DEF... (4 Replies)
Discussion started by: jville
4 Replies

5. Shell Programming and Scripting

Changing the date format in a script

Hi, I run a script which outputs various records, anyway one of the columns contains the date in the format DDMMYYYY, I would like to make this DDMMYY. Is there an easy way to do this, (11 Replies)
Discussion started by: mcclunyboy
11 Replies

6. UNIX for Dummies Questions & Answers

Date format in Bash Script

Hi Experts, We get "Day" of a month in a variable, so how to make date of out it? To make more sense if my variable $DAY contains "12" and month and year will be current date (as of today) so I want to see as output as 2013-09-12. How can I achive this bash script?? Any help is... (4 Replies)
Discussion started by: parpaa
4 Replies

7. Shell Programming and Scripting

Changing script from csh to bash

Hello Guys I have a script working fine on csh, but I would like to change it to bash, how I should change this command to be able to work as bash script. :wall: if ( $fsw > "0" ) then foreach swath ( `awk 'BEGIN {for (i='$fsw';i<='$lsw';i++) printf ("%s\n", i) }'` ) ## work to be done... (2 Replies)
Discussion started by: jiam912
2 Replies

8. UNIX for Beginners Questions & Answers

Connecting and changing variables in Bash script

#!/bin/bash X=$(</home/cogiz/computerhand.txt) # (3S 8C 2H 6D QC 8S 4H 5H) Y=$(</home/cogiz/topcardinplay.txt) # KS A=( "${Y::1}" ) B=( "${Y:1}" ) for e in ${X}; do if ]; then # searching for valid cards K,S or 8 ... (0 Replies)
Discussion started by: cogiz
0 Replies

9. UNIX for Beginners Questions & Answers

Changing date format with script

I'm trying to change date format using this script from day/month/year to month/day/year #!/bin/bash while read line; do echo "$line" date=$(echo "$line" | cut -d/ -f1 ) month=$(echo "$line" | cut -d/ -f2 ) echo $month"/"$date"/2017" done < ~/Downloads/Dates.csv But I get output as... (5 Replies)
Discussion started by: sharat
5 Replies

10. UNIX for Beginners Questions & Answers

Changing CSV files with date . Subtracting date by values

Hi All, I have a CSV file which is as below. Basically I need to take the year column in it and find if the year is >= 20152 . If that is then I should subtract all values by 6. In the below example in description I am having number mentioned as YYWW so I need to subtract those by -5. Whereever... (8 Replies)
Discussion started by: arunkumar_mca
8 Replies
DATETIME.SETDATE(3)							 1						       DATETIME.SETDATE(3)

DateTime::setDate - Sets the date

       Object oriented style

SYNOPSIS
public DateTime DateTime::setDate (int $year, int $month, int $day) DESCRIPTION
Procedural style DateTime date_date_set (DateTime $object, int $year, int $month, int $day) Resets the current date of the DateTime object to a different date. PARAMETERS
o $object -Procedural style only: A DateTime object returned by date_create(3). The function modifies this object. o $year - Year of the date. o $month - Month of the date. o $day - Day of the date. RETURN VALUES
Returns the DateTime object for method chaining or FALSE on failure. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.3.0 | | | | | | | Changed the return value on success from NULL to | | | DateTime. | | | | +--------+---------------------------------------------------+ EXAMPLES
Example #1 DateTime.setDate(3) example Object oriented style <?php $date = new DateTime(); $date->setDate(2001, 2, 3); echo $date->format('Y-m-d'); ?> Procedural style <?php $date = date_create(); date_date_set($date, 2001, 2, 3); echo date_format($date, 'Y-m-d'); ?> The above examples will output: 2001-02-03 Example #2 Values exceeding ranges are added to their parent values <?php $date = new DateTime(); $date->setDate(2001, 2, 28); echo $date->format('Y-m-d') . " "; $date->setDate(2001, 2, 29); echo $date->format('Y-m-d') . " "; $date->setDate(2001, 14, 3); echo $date->format('Y-m-d') . " "; ?> The above example will output: 2001-02-28 2001-03-01 2002-02-03 SEE ALSO
DateTime.setISODate(3), DateTime.setTime(3). PHP Documentation Group DATETIME.SETDATE(3)
All times are GMT -4. The time now is 02:18 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy