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FAT32 File copier & splitter (works with Multiman)
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#!/bin/bash | |
# Are you using Mac OS X? | |
# You need to install coreutils for this to work. | |
# try `brew install coreutils` | |
# or `sudo port install coreutils` | |
# set a part size that works with FAT32 drives | |
PART_SIZE=3999 | |
# nice little intro | |
echo "" | |
echo "" | |
echo "" | |
echo "F R E E M A N I N D U S T R I E S" | |
echo "" | |
echo "This script copies a directory in its entirety to a new destination, and automatically splits files greater than 4gb along the way without compression." | |
echo "" | |
echo "The 3rd argument, prefix, is optional. If left out, files will be outputted as .00, .01." | |
echo "Here's an example - specify abc as the prefix, and the result will be .abc00, .abc01." | |
echo "" | |
echo "I built this to easily copy my PS3 backups to a FAT32 drive." | |
echo "For Multiman backups, specify 666 and the split files will be output as .66600, .66601 which Multiman successfully extracts." | |
echo "" | |
echo "" | |
echo "" | |
# validate args | |
USAGE="Usage: ./copyToFat32 \$INPUT_DIR \$OUTPUT_DIR \$PREFIX" | |
if [[ -z "$1" ]]; then | |
echo "You're missing \$INPUT_DIR." | |
echo $USAGE 1>&2 | |
echo "" | |
exit 1 | |
fi | |
if [[ -z "$2" ]]; then | |
echo "You're missing \$OUTPUT_DIR." | |
echo $USAGE 1>&2 | |
echo "" | |
exit 1 | |
fi | |
# grab input & output from arguments | |
INPUT_DIR=$(realpath $1) | |
OUTPUT_DIR=$(realpath $2) | |
PREFIX=$3 | |
# make sure the output dir exists. | |
mkdir -p "$OUTPUT_DIR" | |
# read through contents of input directory recursively... | |
find $INPUT_DIR | while read FILE; do | |
echo "" | |
# get the relative path by replacing the input directory prefix with a blank string. also replace the initial slash. | |
RELATIVE_PATH="$OUTPUT_DIR/${FILE/$INPUT_DIR/}" | |
if [[ -d "$FILE" ]] | |
then | |
# this is a directory, so we create it at the destination. | |
mkdir -p "$RELATIVE_PATH" | |
echo "📁 Created a directory at $OUTPUT_DIR" | |
continue | |
fi | |
if [[ -f "$FILE" ]] | |
then | |
# this is a file, so we need to copy it over. | |
echo "📂 $FILE" | |
# get file size | |
FILE_SIZE=$(du -m "$FILE" | cut -f1) | |
# if the file is already smaller than the part size, we just need to copy it. splitting isn't necessary. | |
if [ "$FILE_SIZE" -le "$PART_SIZE" ] | |
then | |
echo "📋 This file is small enough to just be copied (${FILE_SIZE}mb)" | |
cp "$FILE" "$RELATIVE_PATH" | |
fi | |
# if the file size is larger than the minimum, then we need to split it into parts. | |
if [ "$FILE_SIZE" -gt "$PART_SIZE" ] | |
then | |
echo "✂️ This file needs to be split into multiple parts (${FILE_SIZE}mb)" | |
if command -v gsplit >/dev/null 2>&1; then | |
gsplit -b "${PART_SIZE}m" -d "$FILE" "${RELATIVE_PATH}.${PREFIX}" | |
else | |
split -b "${PART_SIZE}m" -d "$FILE" "${RELATIVE_PATH}.${PREFIX}" | |
fi | |
fi | |
echo "✅ Saved to $RELATIVE_PATH" | |
continue | |
fi | |
done |
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