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Top Forums Shell Programming and Scripting Split and name files as 15 minute periods Post 302532932 by Corona688 on Wednesday 22nd of June 2011 12:11:47 PM
Old 06-22-2011
What's your system? What's your shell? If you have GNU date, which usually comes with Linux, this may be possible in the shell, otherwise you'll likely need a language like Perl.

Code:
NOW_STR=$(date +'%Y-%m-%d') # Or manually set NOW_STR to 2011-01-11 for Jan 11
# -d needs GNU date.
T=$(date -d $NOW_STR +%s) # Start of the day, in epoch seconds
OFF=0

for FILE in x[a-z][a-z] # Matches xaa, xab, etc. that split makes in alphabetical order.
do
        L1="$(date -d "@$T" "+%Y%m%d.%H%M")"
        L2="$(date -d "@$((T+(60*15)))" "+%Y%m%d.%H%M")"
        echo mv "$FILE" A"${L1}-${L2}_transaction.csv"
        ((T += (60*15) )) # Add 15 minutes
        ((OFF += 15))
done

I am confused by your use of split though. You say it's random, but you split at a fixed size?

Last edited by Corona688; 06-22-2011 at 01:25 PM..
This User Gave Thanks to Corona688 For This Post:
 

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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 05:01 AM.
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