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Top Forums Shell Programming and Scripting How to delete a column/columns of a CSV file which has cell values with a string enclosed in " , "? Post 302825437 by Yoda on Monday 24th of June 2013 12:11:13 PM
Old 06-24-2013
Quote:
Originally Posted by dhruuv369
can you please explain the code...
Code:
awk -F, '                               # Set comma as input field separator
        NR == 1 {                       # If NR (total records read) == 1
                NF -= 3                 # Subtract 3 from NF (number of fields in current record)
        }
        NF > 1 {                        # If NR (total records read) > 1
                sub (/",.*/, "\"")      # Substitute " followed by , followed by .* (0 or more occurrence of any char) with "
        }
        1                               # 1 == true (if true, default awk action is print)
' OFS=, file                            # Set comma as output field separator

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MONGOIMPORT(1)							  Mongo Database						    MONGOIMPORT(1)

NAME
mongoimport - the Mongo import tool SYNOPSIS
mongoimport [OPTIONS] DESCRIPTION
mongoimport is a tool to import a MongoDB collection from JSON, CSV, or TSV. The query can be filtered or a list of fields to input can be given. OPTIONS --help show usage information -h, --host HOST server to connect to (default HOST=localhost) -d, --db DATABASE database to use -c, --c COLLECTION collection to use (some commands) --dbpath PATH directly access mongod data files in this path, instead of connecting to a mongod instance -v, --verbose be more verbose (include multiple times for more verbosity e.g. -vvvvv) -f, --fields NAMES comma separated list of field names e.g. -f name,age --fieldFile FILE file with fields names - 1 per line --jsonArray load a json array, not one item per line. Currently limited to 4MB. --ignoreBlanks if given, empty fields in csv and tsv will be ignored --type TYPE type of file to import. default: json (json,csv,tsv) --file FILE file to import from; if not specified stdin is used --drop drop collection first --headerline CSV,TSV only - use first line as headers COPYRIGHT
Copyright 2007-2009 10gen SEE ALSO
For more information, please refer to the MongoDB wiki, available at http://www.mongodb.org. AUTHOR
Kristina Chodorow 10gen January 2010 MONGOIMPORT(1)
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