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Full Discussion: Need help on awk script
Top Forums Shell Programming and Scripting Need help on awk script Post 302804971 by juzz4fun on Thursday 9th of May 2013 11:58:59 AM
Old 05-09-2013
Quote:
Originally Posted by Yoda
Let us say if you have list of X codes in file: no_x_code_list

Assuming fields in your file: input_file.csv are separated by colon :, you could do something like:
Code:
awk -F':' 'NR==FNR{A[$1];next}!($8 in A)' no_x_code_list input_file.csv

Yoda, would you mind explaining to me the flow or logic behind this solution?
NR==FNR{A[$1];next} What is A here? Does !($8 in A) gets executed for every value in no_x_code_list or it will be executed once all values are stored in A?
 

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LEARN ABOUT DEBIAN

obd2csv

obd2csv(1)						      General Commands Manual							obd2csv(1)

NAME

       obd2csv - Convert obdgpslogger(1) logs to csv files

SYNOPSIS

       obd2csv [ options ]

DESCRIPTION

       Convert obdgpslogger(1) logs to csv files

OPTIONS

       -o|--out <output filename>
	      Output to this .csv file

       -d|--db <database>
	      Work from logs stored in this database file

       -s|--start <time>
	      Only dump rows more recent than this

       -e|--end <time>
	      Only dump rows older than this

       -z|--gzip
	      gzip compress output using zlib [if available]

       -v|--version
	      Print out version number and exit.

       -h|--help
	      Print out help and exit.

NOT OPTIONS

       These options aren't intended for end-users, they're for the GUI.

       -p|--progress
	      Print out progress. It will occasionally print a number in the range [0..100], indicating progress percentage.

SEE ALSO

       obdgpslogger(1), obd2kml(1), obd2gpx(1), obdsim(1), obdgui(1), obdlogrepair(1)

AUTHORS

       Gary "Chunky Ks" Briggs <chunky@icculus.org>

																	obd2csv(1)
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