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Full Discussion: sed --> sort data by date
Top Forums Shell Programming and Scripting sed --> sort data by date Post 302881932 by IMPe on Friday 3rd of January 2014 03:20:20 AM
Old 01-03-2014
Quote:
Originally Posted by ctsgnb
.....
Code:
if [ $(date +%m) = "01" ]
then
y=$(echo $(date +%y)$( echo $(($(date +%Y)-1 )) | tail -c 3 ) )
else
y=$(date +%y)
fi

should be sufficient since [1413] in regex will give the same result than [134] (it's just a little less clean)

By the way, you will have to care of century jump because your %y will go from 99 to 00, that's why i calculate last year using %Y (uppercase) rather than %y.
Hi ctsgnb,

thanks a lot for your extensive support. It take some time for me, to understand all your methods and proposals. But again i have learned more about sed and i solved my problem properly.

Thanks a lot,
IMPe
 

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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 03:16 AM.
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