CSV formatting with prefixing, appending and padding field


 
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# 8  
Old 01-13-2009
Spot on.

The first parameter of printf() is the "format specification" which contains placeholders (prefixed by %) for the variable parts. The remaining parameters are the variables which will fill those placeholders in the output string.

It's very useful to know because you'll find it in many languages now... originally from C.
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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)