08-19-2011
delete a row in csv file based on the date
Hi,
I have a csv file with old data..i need to have only last 30 days from the current dateof data in the file.The fourth field in the file is a date field.i need to write a script to delete the old data by comparing the the fourth field with the (current date -30).I need to delete the rows in red as they are very old in the month of feburary.Please Could you kindly let me know how to acheive this in unix scripting.
sample records
----------------------
24,126,1,19/02/2011 03:44:15,1
24,126,2,19/02/2011 09:17:06,1
30,126,38,30/07/2011 13:06:35,1
30,126,39,30/07/2011 13:07:12,1
727,19,111,12/08/2011 15:43,1
727,126,94,12/08/2011 15:43,1
24,126,2,19/02/2011 09:17:06,1
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LEARN ABOUT DEBIAN
ocr4gamera
OCR4GAMERA(1) OCR4GAMERA(1)
NAME
ocr4gamera - OCR system using the Gamera framework
USAGE
ocr4gamera -x <traindata> [options] <imagefile>
OPTIONS
-v <int>, --verbosity=<int>
Set verbosity level to <int>. Possible values are 0 (default): silent operation; 1: information on progress; >2: segmentation info
is written to PNG files with prefix debug_.
-h, --help
Display help and exit.
-d, --deskew
Do a skew correction (recommended).
-f, --filter
Filter out very large (images) and very small components (noise).
-a, --automatic-group
Autogroup glyphs with classifier.
-x <file>, --xmlfile=<file>
Read training data from <file>.
-o <xml>, --output=<xml>
Write recognized text to file <xml> (otherwise it is written to stdout).
-c <csv>, --extra_chars_csvfile=<csv>
Read additional class name conversions from file <csv>. <csv> must contain one conversion per line.
-R <rules>, --heuristic_rules=<rules>
Apply heuristic rules <rules> for disambiguation of some chars. <rules> can be roman (default) or none (for no rules).
-D, --dictionary-correction
Correct words using a dictionary (requires aspell or ispell).
-L <lang>, --dictionary-language=<lang>
Use <lang> as language for aspell (when option -D is set).
-e <int>, --edit-distance=<int>
Correct words only when edit distance not more than <int>.
OCR4GAMERA(1)