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Comparing 2 csv files and matching content

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Top Forums Shell Programming and Scripting Comparing 2 csv files and matching content
# 8  
Old 08-31-2009
This works for me:
> cat csv-file1
1111,1111,aaa1, aaa2, aaan
2222,2222,aaa1, bbb2, bbbn
3333,3333,aaa1, ccc2, cccn
4444,4444,bbb1, bbb2,  bbbn
5555,5555,zzz1, zzz2,  zzzn
> cat csv-file2
aaa1, matchvalue1
ccc1, matchvalue2
bbb1, matchvalue3
> nawk 'NR==FNR{a[$1]=","$2;next}{$0=$0""a[$3]}1' FS=',' csv-file2 csv-file1
1111,1111,aaa1, aaa2, aaan, matchvalue1
2222,2222,aaa1, bbb2, bbbn, matchvalue1
3333,3333,aaa1, ccc2, cccn, matchvalue1
4444,4444,bbb1, bbb2,  bbbn, matchvalue3
5555,5555,zzz1, zzz2,  zzzn

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BB-CSVINFO.CGI(1)					      General Commands Manual						 BB-CSVINFO.CGI(1)

bb-csvinfo.cgi - CGI program to show host information from a CSV file SYNOPSIS
bb-csvinfo.cgi DESCRIPTION
bb-csvinfo.cgi is invoked as a CGI script via the CGI wrapper. Based on the parameters it receives, it searches a comma- separated file for the matching host, and presents the information found as a table. bb-csvinfo.cgi is passed a QUERY_STRING environment variable with the following parameters: key (string to search for, typically hostname) column (columnnumber to search - default 0) db (name of the CSV database file in $BBHOME/etc/, default hostinfo.csv) delimiter (delimiter character for columns, default semi-colon) CSV files are easily created from e.g. spreadsheets, by exporting them in CSV format. You should have one host per line, with the first line containing the column headings. Despite their name, the default delimiter for CSV files is the semi-colon - if you need a different delimiter, invoke bb-csvinfo.cgi with the "delimiter=<character>" in the query string. Example usage This example shows how you can use the bb-csvinfo CGI. It assumes you have a CSV-formatted file with information about the hosts stored as $BBHOME/etc/hostinfo.csv, and the hostname is in the first column of the file. Use with the bbgen --docurl The --docurl option to bbgen(1) sets up all of the hostnames on your Xymon webpages to act as links to a CGI script. To invoke the bb-csvinfo CGI script, run bbgen with the option --docurl=/cgi-bin/ SEE ALSO
bb-hosts(5), hobbitserver.cfg(5), bbgen(1) Xymon Version 4.2.3: 4 Feb 2009 BB-CSVINFO.CGI(1)

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