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Full Discussion: Detect blank spaces in a CSV file
Top Forums Shell Programming and Scripting Detect blank spaces in a CSV file Post 302982786 by Don Cragun on Tuesday 4th of October 2016 01:35:04 AM
Old 10-04-2016
With any POSIX conforming shell, you could also do this entirely in the shell:
Code:
#!/bin/ksh
while IFS= read -r line
do	printf 'Processing %s\n' "$line"
	set -- $line
	ip=$1
	tm=$2
	shift 2
	SSID=
	while [ $# -gt 1 ]
	do	SSID=${SSID}_$1
		shift
	done
	SSID=${SSID#_}
	printf '%s %s %s %s\n' "$ip" "$tm" "$SSID" "$1"
done < file.csv

which, if file.csv contains:
Code:
18:70:9f:e3:80:aa 10:11:15 MyNetwork 2437
18:70:9f:e3:80:aa 10:11:15 My Wi-Fi Network 2438
18:70:9f:e3:80:aa 10:11:15 2439

produces the output:
Code:
Processing 18:70:9f:e3:80:aa 10:11:15 MyNetwork 2437
18:70:9f:e3:80:aa 10:11:15 MyNetwork 2437
Processing 18:70:9f:e3:80:aa 10:11:15 My Wi-Fi Network 2438
18:70:9f:e3:80:aa 10:11:15 My_Wi-Fi_Network 2438
Processing 18:70:9f:e3:80:aa 10:11:15 2439
18:70:9f:e3:80:aa 10:11:15  2439

These 2 Users Gave Thanks to Don Cragun For This Post:
wisecracker Zooma
 

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LEARN ABOUT DEBIAN

rdf::trine::exporter::csv

RDF::Trine::Exporter::CSV(3pm)				User Contributed Perl Documentation			    RDF::Trine::Exporter::CSV(3pm)

NAME

       RDF::Trine::Exporter::CSV - Export RDF data to CSV

VERSION

       This document describes RDF::Trine::Exporter::CSV version 1.000

SYNOPSIS

	use RDF::Trine::Exporter::CSV;

DESCRIPTION

       The RDF::Trine::Exporter::CSV class provides an API for serializing RDF data to CSV strings and files.

METHODS

       "new ( sep_char => $sep_char, quote => $bool )"
	   Returns a new RDF::Trine::Exporter::CSV object. If $sep_char is provided, it is used as the separator character in CSV serialization,
	   otherwise a comma (",") is used.

       "serialize_iterator_to_file ( $file, $iterator )"
	   Serializes the bindings objects produced by $iterator, printing the results to the supplied filehandle "<$fh">.

       "serialize_iterator_to_string ( $iterator )"
	   Serializes the bindings objects produced by $iterator, returning the result as a string.

BUGS

       Please report any bugs or feature requests to through the GitHub web interface at <https://github.com/kasei/perlrdf/issues>.

AUTHOR

       Gregory Todd Williams  "<gwilliams@cpan.org>"

COPYRIGHT

       Copyright (c) 2006-2012 Gregory Todd Williams. This program is free software; you can redistribute it and/or modify it under the same terms
       as Perl itself.

perl v5.14.2							    2012-06-29					    RDF::Trine::Exporter::CSV(3pm)
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