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#!/bin/sh
#
# Print summaries of bibtex entries in tsv format given as input
# showing only the requested fields
#
if [ $# -lt 1 ]; then
printf "Usage: %s <field> [<field>...]\n" $0
exit 1;
fi
fields=$(echo "$@" | sed -E 's/([a-zA-Z0-9]+)/\1.\*=|/g;s/\ //g')
fields=$(echo "$fields" | sed -E 's/\|$//')
##echo "$fields"
IFS='
'
while read -r line; do
name=$(echo "$line" | cut -f 1)
attrall=$(echo "$line" | cut -f 2-)
attrs=$(echo "$line" | tr '\t' '\n' | sort | grep -E -ai "($fields)" | tr '\n' '\t' | sed -E 's/\ +/ /g')
printf "%s\t%s\t}\n" $name $attrs
done
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