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Top Forums Shell Programming and Scripting Filter uniq field values (non-substring) Post 302901379 by vgersh99 on Tuesday 13th of May 2014 02:19:35 PM
Old 05-13-2014
Quote:
Originally Posted by yifangt
I did not forget this discussion, the left challenge is the speed. The script by vgersh99 took ~45hours to finish the file of 76,235 rows. Probably awk is not the best choice to process big file. Thank you all anyway!
I don't think it's a matter of a 'tool of choice', but rather of an algorithm to deal with the cached/stored matches in order to minimize the 'full table scan' for each newly found row/line....
I couldn't think of an easy non-convoluted way of minimizing the full table scan...
Maybe others would have better ideas.....
 

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PCT-SCANNER-SCRIPT(1)					      General Commands Manual					     PCT-SCANNER-SCRIPT(1)

NAME
pct-scanner-script - easy scan and create merged DjVu and PDF documents for archiving SYNOPSIS
pct-scanner-script [--help] DESCRIPTION
pct-scanner-script is a bash script and configuration system to easily scan documents and create a digital archiving. It can create DjVu PDF and JPEG outputs, in merged and individual files. It also has a configuration system where different configurations can be defined, making it easy to switch between configurations. Please use pct-scanner-script --help to find all program options, the complete help, and all examples. Features: - auto archiving in merged and individual DjVu, PDF, and JPEG files - auto and manual resume when scanning somehow fails - cascading configuration system, for easy customizing - easy command-line-style bash program, with useful options - archiving made possible with both adf and flatbed scanners - built for productivity and daily use - uses bash, scanadf and other mainstream processing tools - multilanguage commandline output OPTIONS
-h, --help, -? Show summary of options, help, and examples. DEBUGGING
This program is a helper script to easy scan and automated digital document archiving for normal and adf scanners. You can debug this script by running it as bash -x pct-scanner-script [options]. The script is just a nice wrapper for the scanadf, DjVu and PDF tools. SEE ALSO
scanadf(1), AUTHOR
pct-scanner-script and this manual page are written by: Jelle de Jong <jelledejong@powercraft.nl>. March 31, 2009 PCT-SCANNER-SCRIPT(1)
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