Basic Cassandra -> S3 backup script

backup-keyspace.sh

#!/bin/bash

KEYSPACE=$1
DATE=`date +"%Y-%m-%d--%H-%M-%S"`
FOLDER_NAME=${DATE}-daily
S3_BUCKET=s3://YOUR-S3-BUCKET
S3_BUCKET_PATH=cassandra/full/`date +"%Y/%m/%d/%H/%M"`/`cat /etc/hostname`
SNAPSHOTID=`uuidgen --time`
PGP_KEY_RECIPIENT=YOUR-PGP-KEY-RECIPIENT

echo "------ NEW RUN ------"
echo "Taking daily db dump for $DATE with id=$SNAPSHOTID"

nodetool snapshot --tag $SNAPSHOTID $KEYSPACE

TABLES=`ls /var/lib/cassandra/data/$KEYSPACE`
for table in $TABLES
do
    echo ""
    echo "Encrypting and sending all $table files one by one..."
    FILES=`find /var/lib/cassandra/data/$KEYSPACE/${table}/snapshots/$SNAPSHOTID -type f`
    for filename in $FILES
    do
        # Need to deal with files one by one to not have the file usage explode
        # because we are dealing with hardlinks.
        gpg --encrypt --recipient "$PGP_KEY_RECIPIENT" --output $filename.gpg $filename
        rm -v $filename
        # s3cmd added support for writing files from stdin first somewhere in
        # 1.5.0-alpha. Otherwise we would have been able to pipe `gpg` output
        # directly into s3cmd. See https://github.com/s3tools/s3cmd/issues/270.
        s3cmd put $filename.gpg $S3_BUCKET/$S3_BUCKET_PATH/$table/`basename $filename`.gpg

        rm -v $filename.gpg
    done

    rmdir -v /var/lib/cassandra/data/$KEYSPACE/${table}/snapshots/$SNAPSHOTID
done

echo "DONE!"
echo ""

What is PGP_KEY_RECIPIENT=YOUR-PGP-KEY-RECIPIENT in script..how can i get it???