moveblockstoHDD.sh

#!/bin/bash
# moveblockstoHDD.sh
# Moves blocks from SSD to HDD
set -e
BLK_TARGET=/mnt/omv/blocks
WORKDIR=/mnt/bitcoin/bitcoin/blocks

# How many files to move PER TYPE 
LIMIT=100

echo "Did you stop bitcoind, lnd and electrs?"
sleep 2
echo "Will move blocks to: $BLK_TARGET"
echo "Are you user bitcoin? wohami:"
whoami
sleep 2
echo "Test if $BLK_TARGET is mounted"
ls $BLK_TARGET
echo "Did it print blocks?"
echo "Now moving "$LIMIT" files per filetype"
echo "You have 10 seconds to quit with CTRL-C"
sleep 10
echo "Using workdir: "$WORKDIR
cd $WORKDIR

function dryrun {
    ((++COUNT))
    echo $COUNT
    echo $line
    echo 'Link remote file' "$BLK_TARGET/$line" ' as local '"$WORKDIR/$line"
	if [[ $COUNT == $LIMIT ]]; then
		break
	fi
}

function movefiles {
	((++COUNT))
    echo $line
    cp -u "$WORKDIR/$line" "$BLK_TARGET/$line"
    rm "$WORKDIR/$line"
    ln -s "$BLK_TARGET/$line" "$WORKDIR/$line"
	if [[ $COUNT == $LIMIT ]]; then
		break
	fi
}

function findandmove {
    COUNT=0
    echo "----------------------------- find "$FILENAME -----------------------
    sleep 2
    find "$WORKDIR" -name "$FILENAME" -type f -printf '%f\n' | sort > tomove
    while read line; do
        dryrun
#       movefiles
    done <tomove
    rm tomove
}

FILENAME='blk*.dat'
findandmove
FILENAME='rev*.dat'
findandmove
echo Done