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Add biblio checker

#!/usr/bin/env bash

REFFILE="references.bib"
PGM=$(basename $0 .sh)

if [[ ! -f "${REFFILE}" ]]
then
    echo "${PGM}:  ${REFFILE} not found"
    exit 1
fi

REF=""

while read LINE
do
    echo "${LINE}" | egrep '^%K' > /dev/null

    if [[ $? == 0 ]]
    then
        REF=$(echo "${LINE}" | awk '{ print $2 }')
    fi

    echo "${LINE}" | egrep '^%O' > /dev/null

    if [[ $? == 0 ]]
    then
        URL=$(echo "${LINE}" | awk '{ print $3 }')
        OUTFILE="${REF}.archive"
        
        wget -O "${OUTFILE}" "${URL}" &> /dev/null

        if [[ $? != 0 ]]
        then
            echo "${REF}:  ${URL} FAIL"
        fi
    fi    
done < "${REFFILE}"