Query Wikidata via SPARQL from command line

wdquery

#!/bin/bash
#
# Run a Wikidata query from command line
# 
# Usage examples:
#
#   wdquery "DESCRIBE wd:Q42"
#   wdquery - xml < query.sparql
#   wdquery query.sparql json
#

QUERY=${1--}        # SPARQL query or file
FORMAT=${2-json}    # output format

ENDPOINT=https://query.wikidata.org/sparql

# make sure query is written to a file
if ! [ -f "$QUERY" ]
then
    TMPFILE="$(mktemp)"
    if [ "$QUERY" == "-" ]
    then
        # read query from STDIN
        cat > "$TMPFILE"
    else
        # write query to file
        echo "$QUERY" > "$TMPFILE"
    fi
    QUERY="$TMPFILE"
fi

curl -s -X GET -F "query=@$QUERY" "$ENDPOINT?format=$FORMAT"

[ -z "$TMPFILE" ] || rm "$TMPFILE"