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extracting date from a filename

 
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# 8  
Old 11-25-2008
You could try something like this:

Code:
$ ls -l
total 0
-rw-r--r-- 1 sysadmin None 0 Nov 25 20:19 lock_eicu_20071228_00000000.dat_20071228_05343100
-rw-r--r-- 1 sysadmin None 0 Nov 25 20:19 lock_eicu_20080501_00000000.dat_20080501_05343900
$ printf "%s\n" *.dat_* |
  sort -rt_ -k5 |
    read
$ printf "%s\n" "$REPLY" 
lock_eicu_20080501_00000000.dat_20080501_05343900

Last edited by radoulov; 11-25-2008 at 03:30 PM.. Reason: -k5 should be sufficient ...
 
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LEARN ABOUT CENTOS

exchange2ical

EXCHANGE2ICAL(1)					     OpenChange Users' Manual						  EXCHANGE2ICAL(1)

NAME

       exchange2ical - Convert Exchange calendar to ical file

SYNOPSIS

       exchange2ical [-?V] [-?|--help] [--usage] [-f|--database=STRING] [-p|--profile=STRING]
	    [-P|--password=STRING] [-i|--icalsync=STRING] [-o|--filename=STRING] [-R|--range=STRING]
	       [-d|--debuglevel=STRING] [--dump-data] [-V|--version]

DESCRIPTION

       exchange2ical  provides	a  way	to  extract appointments from an Exchange calendar into the ical format. The ical is provided on stdout by
       default if the filename is not specified.

OPTIONS

       --database

       -f     Set the path to the profile database to use

       --profile

       -p     Set the profile to use. If no profile is specified, exchange2ical tries to retrieve the default  profile	in  the  database.  If	no
	      default profile has been set, exchange2ical returns MAPI_E_NOT_FOUND .

       --password

       -P     Specify the password for the profile to use. This can be omitted if the password is stored in the profile.

       --icalsync

       -i     Specify an icalendar file to be used to sync back to exchange.

       --filename

       -o     Specify  the  filename for the icalendar output.	The specified file will be overwritten with the new icalendar. If this is omitted,
	      stdout will be used by default.

       --range

       -r     Specify the range of exchange appointments to be converted into an icalendar.  If there are no events, whos start date is within the
	      specified range, an icalendar with no vevents will be returned.  Format: MM/DD/YYYY-MM/DD/YYYY

       --dump-data
	      Dump the hex data. This is only required for debugging or educational purposes.

       --debuglevel

       -d     Set the debug level.

EXAMPLES

       Extract appointments from the Exchange calendar:
       exchange2ical > appointments.ical
       Extract appointments from the Exchange calendar to a specified path
       exchange2ical --filename=/path/to/file.ics
       Extract only appointments which begin from June 25 2008 to July 26 2009
       exchange2ical --range=06/25/2008-07/26/2009

REMARKS

       If you are using the default profile database path and have set a default profile (using mapiprofile --profile=profile_name -S ) you do not
       need to specify these parameters on the command line.

AUTHOR

       exchange2ical was written by Julien Kerihuel <j.kerihuel at openchange dot org>

       This man page was written by Brad Hards <bradh at openchange dot org>

OpenChange 2.0 QUADRANT 					    2013-01-24							  EXCHANGE2ICAL(1)