Wikipedia / MediaWiki XML dump grepper

Global installation:

npm install dumpgrepper -g
dumpgrepper --help
bzcat dump.xml.bz2 | dumpgrepper <regexp>

Local installation (from inside a git checkout)

npm install
node index --help
bzcat dump.xml.bz2 | node index <regexp>

Options

• -i: Case-insensitive [default: false]
• -m: Treat ^ and $ as matching beginning/end of each line, instead of beginning/end of entire article. [default: false]
• --color: Highlight matched substring using color. Use --no-color to disable. Default is "auto". [default: "auto"]
• -l:Suppress normal output; instead print the name of each article from which output would normally have been printed. [default: false]

See the dumpGrepPatterns/ folder for some example regexps.

Getting wikipedia dumps

You can get dumps at download.wikimedia.org. You probably want the pages-articles dump, for example http://dumps.wikimedia.org/enwiki/20141106/enwiki-20141106-pages-articles.xml.bz2 (~10G).

Example output

== Match: [[Stamford Hill]] ==
|1,390||2,069||127||68||1,784||1,532
|-
! Total ||54,295||18,718||407||447||8,475||7,475||
== Match: [[Upminster]] ==
6" |Upminster compared (2001 Census)
|-
! Statistic || Upminster<ref name=stat_upminster/> || 
== Match: [[London Borough of Redbridge]] ==
lford High Road]]
{| class="wikitable" 
! Former local government district || Population (1961)<ref>{{cite vob|name=R
== Match: [[Cottonwood County, Minnesota]] ==
]] for agricultural use.
===Lakes===
{|
! Des Moines River Watershed || Minnesota River Watershed
|- valign=top
################################################
Total revisions: 64904
Total matches: 580
Ratio: 0.8936275114014545%
################################################