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Full Discussion: CSV joining and checking multiple files
Top Forums Shell Programming and Scripting CSV joining and checking multiple files Post 302980038 by SDohmen on Tuesday 23rd of August 2016 05:25:52 AM
Old 08-23-2016
Sorry for that but it is a very confusing bit indeed.

website_clean.csv
Code:
Barcode;Sku;Manufacturer
4260010852693,4000567150589;P00002801;Fujifilm
4960999575285;P00002800;Canon
4000461034213,4000461037818;P00002799;Dörr
0891257001526,8912570015266;P00002634;Gary Fong
0891257001106;P00002633;Gary Fong
0887111646026;P00002632;HP
0088698115763;P00002631;HP

supplier_clean.csv
Code:
ean;pps_reference;stock;price;mpn;manufacturer
4260010852693;1043154;84;743.42;70100118555;Fujifilm
4960999575285;273189;9400;141.80;2768B016;Canon
4000461034213,4960999575292;27433196;44;44.94;2768B017;Canon
8715946388540;2944686;1030;47.76;C13S042167;Epson
0088698115763,3141725001174;3654125;20;54.80;C1825A;Hewlett Packard

manufacturer_compare.csv
Code:
manufacturer
HP,Hewlett Packard, HP INC.
Canon
Fujifilm
Epson
WD,Western Digital

Above are 3 files in which the first 2 are the important ones for the joining part.

When i run the script with ./join_prijslijst.sh website_clean.csv supplier_clean.csv output.csv, i get the following output
Code:
ean;sku;pps_reference;mpn;stock;price;manufacturer;supplier_code
4260010852693;P00002801;1043154;84;743.42;70100118555;Fujifilm
4960999575285;P00002800;273189;9400;141.80;2768B016;Canon
4000461034213,4960999575292;P00002799;27433196;44;44.94;2768B017;Canon
0088698115763,3141725001174;P00002631;3654125;20;54.80;C1825A;Hewlett Packard

You would say that this is correct and also fine but the problem is the following line:
Code:
4000461034213,4000461037818;P00002799;Dörr

In the website file the manufacturer is Dorr but in the supplier file it is Canon thus making the wrong join and most likely also add a wrong price etc to this product.

What we want is to have this split up in 2 files in which 1 is as follows:
New_output.csv
Code:
ean;sku;pps_reference;mpn;stock;price;manufacturer;supplier_code
4260010852693;P00002801;1043154;84;743.42;70100118555;Fujifilm
4960999575285;P00002800;273189;9400;141.80;2768B016;Canon
0088698115763,3141725001174;P00002631;3654125;20;54.80;C1825A;Hewlett Packard

and another file with the following contents:
wrong_match.csv
Code:
4000461034213,4000461037818;P00002799;Dörr;4000461034213,4960999575292;27433196;44;44.94;2768B017;Canon

Then we can check that it is the same manufacturer or not. If for example the manufacturer would be HP inc instead of HP in our system we can just add that to the manufacturer_compare.csv file so it will get recognized the next time.

I hope this clears it up a bit.
 

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