gfind

#!/bin/bash

directories=(
'dir1'
'dir2')

function search {
    res=$(unzip -c \*.mtgx Graphs/Graph1.graphml 2>&1 |egrep "(Archive: )|$1" |grep "<mtg:Value" -B1)
    res=$(echo -e "$res" |sed 's/\<mtg\:Value\>//g')
    res=$(echo -e "$res" |sed 's/\<\/mtg\:Value\>//g')

    echo -e "$res"|grep -v "<"
}

for dir in "${directories[@]}"; do
   cd "$dir" && search $1
done
exit 0