/documents/accounts/transfer/done/abc_yyyy-mm-dd_hh-mm-ss-[0-9]{6}.csv
/documents/namelist/transfer/done/def_yyyy-mm-dd_hh-mm-ss-[0-9]{6}.csv
/documents/newcustomer/transfer/done/ghijkl_yyyy-mm-dd_hh-mm-ss-[0-9]{6}.csv

#!/bin/bash
date=`date +%Y-%m-%d`;
config_file="/scripts/config/abc.cfg";
echo $config_file;
URL="http://localhost:9200/document-$date";
find /documents -type f -name "*_'${date}'*.csv" | while read filename
do
       echo "filename : ${filename}"
       var=$(base64 $filename| perl -pe 's/n//g');
       var1= curl -XPUT 'http://localhost:9200/documents-'$date'/document/?pipeline=attachment&pretty' -d' { "data" : "'$var'" }')
done;

find  -type f -name "*_${date}*.csv"

touch abc_2016-12-28-3523424-acsfsc.csv
touch abc_2016-12-29-3523424-acsfsc.csv

find . -maxdepth 1 -type f -print
./abc_2016-12-28-3523424-acsfsc.csv
./abc_2016-12-29-3523424-acsfsc.csv

date=$(date +%Y-%m-%d)
find  -type f -name "*_${date}*.csv"
./abc_2016-12-28-3523424-acsfsc.csv

while IFS='' read -r -d '' filename
do
    echo "filename : ${filename}"
    var=$(base64 "$filename"| perl -pe 's/n//g');
    var1=$(curl -XPUT "http://localhost:9200/documents-$date/document/?pipeline=attachment&pretty" -d '{ "data" : "'"$var"'" }')
done < <(find -type f -name "*_${date}*.csv" -print0)