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Full Discussion: Compare dates with time
Top Forums Shell Programming and Scripting Compare dates with time Post 302591894 by ahamed101 on Saturday 21st of January 2012 11:28:11 AM
Old 01-21-2012
Try this...
Code:
#!/bin/bash

d1="21 Jan 2012 05:46:59,146"
d2="21 Jan 2012 02:12:30,113"
d3="17 Jan 2012 09:08:10,417"
s1=$( date -d "${d1%%,*}" '+%s' )
s2=$( date -d "${d2%%,*}" '+%s' )
s3=$( date -d "${d3%%,*}" '+%s' )

echo -e "$s1\n$s2\n$s3" | sort -n | tail -1 | xargs -I {} date -d @{} '+%d %b %Y %T'

--ahamed
 

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sttime(3)						    ShapeTools Toolkit Library							 sttime(3)

NAME
stMktime, stWriteTime - date and time handling SYNOPSIS
#include <config.h> #include <sttk.h.h> time_tstMktime (char *string); char*stWriteTime (time_t date); DESCRIPTION
stMktime scans the given string and tries to read a date and time from it. It understands various formats of date strings. The following is a list of all valid formats, optional parts in brackets. [Tue] Jan 5[,] [19]93 This includes the standard asctime(3) format. Jan 5 With no year given, the year defaults to the current year. [19]93/01/05 This notation requires month and day represented by exactly two digits. 5.1.[19]93 This is the usual German notation. 5.1. German notation referencing the current year. A certain time, given together with the date must always have the following form. hours:minutes[:seconds] Each of the fields must be an integer value within the proper range (hours: 0-23, minutes and seconds: 0-59). Values below 10 may be written as one digit numbers. The time value may be placed anywhere in the date string: at the beginning, at the end, or somewhere in the middle. Any amount of white- space may be given between a field of the time value and the separating colon. The time is always considered to be local time. stWriteTime generates a time string similar to asctime(3) from its date argument. SEE ALSO
asctime(3) BUGS
Time Zone Names within the time string (like `MET') are not handled properly. In most cases they will cause a failure. sttk-1.7 Thu Jun 24 17:43:35 1993 sttime(3)
All times are GMT -4. The time now is 10:26 AM.
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