Script to fill a path with 32G files

fill_disk.sh

#!/bin/bash

function usage() {
    echo "usage: $0 <path> <total size in GB>"
}

if [ -z "$1" ]; then
    usage
    exit 1
fi
path=$1

if [ -z "$2" ]; then
    usage
    exit 1
fi

if [ ! -d "$path" ]; then
    echo "${path} is not a directory"
    exit 3
fi

# Calculate the number of files to create
(( num_files=$2/32 ))
for num in $( seq -f "%03g" "$num_files" ); do
    filepath="${path}/orafill${num}"
    if [ -f "$filepath" ]; then
        echo "${filepath} already exists...skipping"
    else
        echo "Creating ${filepath}"
        time dd if=/dev/zero bs=33554432 count=1024 of="${path}/orafill${num}"
    fi    
done