filler.sh

#!/bin/bash

# Directory to fill with files
DIR=$1

# Threshold for free space in KB
THRESHOLD=${2:-104857} # Default is 100MB

# Size of each file in KB
FILESIZE=5120 # 5MB

# Check if directory exists
if [ ! -d "$DIR" ]; then
    echo "Directory $DIR does not exist."
    exit 1
fi

# Function to get free disk space
get_free_space() {
    df "$DIR" | tail -1 | awk '{print $4}'
}

# Create files until free space threshold is reached
while true; do
    FREE_SPACE=$(get_free_space)

    if (( FREE_SPACE < THRESHOLD )); then
        echo "Free space has reached the threshold. Stopping."
        break
    fi

    # Generate a random filename
    FILENAME=$(mktemp -u XXXXXX)

    # Create a file with random bytes
    dd if=/dev/urandom of="$DIR/$FILENAME" bs=1024 count=$FILESIZE >/dev/null 2>&1
done