Simple bash script for Mac OS X that cleans USB drives.

clean_usb

#!/bin/bash

# Simple bash script for Mac OS X that cleans USB drives and adds some default files so that
# 
# 1. Trash folder doesn't get created
# 2. Spotlight indexing is prevented
# 3. Filesystem logs are not created
# 
# Usage:
# 
# $ usb_clean [diskname]
# 
# You may get the name of your USB drive by running:
# 
# $ diskutil list
# 
# 
# 
# For example:
# 
# $ diskutil list
# /dev/disk1
#    #:                       TYPE NAME                    SIZE       IDENTIFIER
#    0:      GUID_partition_scheme                        *4.0 GB     disk1
#    1:                        EFI                         209.7 MB   disk1s1
#    2:       Microsoft Basic Data USBDRIVE                3.8 GB     disk1s2
# 
# $ clean_usb disk1



TARGET=$*

read -n1 -p "You are about to complete erase the contents of /dev/${TARGET}. Are you suer? [y/N] "
echo
case $REPLY in
   y | Y)
   echo "Erasing all the data in /dev/${TARGET}"
   ;;
   * )
   echo "Aborting..."
   exit
   ;;
esac

diskutil eraseDisk MS-DOS "USBDrive" ${TARGET}

rm -rf /Volumes/USBDRIVE/.Spotlight-V100
rm -rf /Volumes/USBDRIVE/.Trashes
rm -rf /Volumes/USBDRIVE/.fseventsd

touch /Volumes/USBDrive/.Trashes
touch /Volumes/USBDrive/.metadata_never_index
mkdir /Volumes/USBDrive/.fseventsd
touch /Volumes/USBDrive/.fseventsd/no_log

echo "Done"