date time stamps in bash


 
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# 1  
Old 10-13-2012
date time stamps in bash

I'm looking for a way to have the "date" command output the date in a specific format.

I'm not familiar with the different ways to use the date command at all. i read up on it, but i dont get how to manipulate it.

i know that i can get the date format to give me a format like:

Code:
2012-10-13

by typing:

Code:
$(date +%Y-%m-%d)

but i'm clueless on how to do the same for date formats like the below? how do i include the time? and timezone (where shown below)?

Code:
2012/02/21 16:23:13 UTC 

[#|2012-02-21T17:17:39.495+0000

2012-02-21 16:34:43,897 

[Tue Feb 21 04:02:27 2012] 

Feb 21 14:00:53 

Wed Mar 28 15:46:21 2012  

<Mar 29, 2012 4:41:49 PM UTC> 

2012.02.24 19:08:47 

04/21/2012 05:00:21 PM 

120806 23:44:48 (year,month,day)

10/9/12 11:06:43:131 PDT

notice how for the date "10/9/12", the day of the month is "single digit". some date formats have "2" digits for the day of the month, as in "09" instead of "9". how can the date format be used to output the formats as is shown in all of the above?

OS: Linux / SunOS
bash
# 2  
Old 10-13-2012
man date shows the full list of format qualifiers including the following
Code:
       %:::z  numeric time zone with : to necessary precision (e.g., -04, +05:30)

       %Z     alphabetic time zone abbreviation (e.g., EDT)

This User Gave Thanks to Skrynesaver For This Post:
# 3  
Old 10-13-2012
Quote:
Originally Posted by Skrynesaver
man date shows the full list of format qualifiers including the following
Code:
       %:::z  numeric time zone with : to necessary precision (e.g., -04, +05:30)

       %Z     alphabetic time zone abbreviation (e.g., EDT)

can you please give examples by using the date command to output the formats in my original post?
# 4  
Old 10-13-2012
Code:
~/$ date +"%Y/%m/%d %H:%M:%S %Z"
2012/10/13 16:51:50 IST
~/$ date +"[#|%Y/%m/%dT%H:%M:%S %Z"
[#|2012/10/13T16:53:43 IST
~/$ date -u +"%Y/%m/%dT%H:%M:%S %Z"
2012/02/21 16:23:13 UTC

Adjusting for the others should be possible from the examples above and the man page, hope that helps.

Last edited by Skrynesaver; 10-13-2012 at 02:16 PM..
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# 5  
Old 10-13-2012
Code:
~]$ TZ=PDT date +"%d/%m/%y %H:%M:%S:%s %Z"
13/10/12 16:23:40:1350145420 PDT

you may also can use TZ as time zone

Last edited by justbow; 10-13-2012 at 02:29 PM.. Reason: quote
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# 6  
Old 10-13-2012
thank you guys!

how about these formats:

Code:
<Mar 29, 2012 4:41:49 PM UTC>

Code:
120806 23:44:48

and

Code:
10/9/12 11:06:43:131 PDT

# 7  
Old 10-14-2012

Use the format specifiers to get whatever output you want. For example:
Code:
date +%y%m%d

See the man page for the full list of specifiers.
This User Gave Thanks to cfajohnson For This Post:
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