diff --git a/formatlto b/formatlto
index de4d36c..cbe7a3c 100755
--- a/formatlto
+++ b/formatlto
@@ -4,7 +4,6 @@
 version="0.2"
 
 SCRIPTDIR=$(dirname "${0}")
-. "${SCRIPTDIR}/ltofunctions" || { echo "Missing '${SCRIPTDIR}/ltofunctions'. Exiting." ; exit 1 ;};
 
 _usage(){
     echo
@@ -18,6 +17,10 @@ _usage(){
     exit
 }
 
+. "${SCRIPTDIR}/ltofunctions" || { echo "Missing '${SCRIPTDIR}/ltofunctions'. Exiting." ; exit 1 ;};
+dependencies=(mkltfs)
+
+
 unset MIDDLE_OPTIONS
 while getopts ":fh" opt ; do
    case "${opt}" in
@@ -30,7 +33,7 @@ done
 
 if [ ! "${LTO_ARRAY}" ] ; then
     if [[ $(uname -s) == "Darwin" ]] ; then
-        LTO_ARRAY=($(system_profiler SPSASDataType | grep "SCSI Target Identifier" | cut -d : -f2 | xargs)) # try to figure out how many lto decks are attached
+        LTO_ARRAY=($(system_profiler SPSASDataType | grep "SCSI Target Identifier" | cut -d : -f2 | sort | xargs)) # try to figure out how many lto decks are attached
     else
         LTO_ARRAY=(0) # to do: itemize when there are multiple lto drives in Linux
     fi
diff --git a/ltofunctions b/ltofunctions
index 0866e75..7fffa63 100644
--- a/ltofunctions
+++ b/ltofunctions
@@ -45,7 +45,7 @@ _report(){
                 n) ECHOOPT="-n" ;;                          # to avoid line breaks after echo
             esac
         done
-        shift $(( "${OPTIND}" - 1 ))
+        shift $(( ${OPTIND} - 1 ))
         MESSAGE="$1"
         echo "${ECHOOPT}" "${COLOR}${START_MESSAGE[@]}${MESSAGE}${NC}"
         [ "${LOG}" = "Y" ] && _log -w "${MESSAGE}"
diff --git a/mountlto b/mountlto
index a5c95e3..2dbcc22 100755
--- a/mountlto
+++ b/mountlto
@@ -5,12 +5,12 @@ SCRIPTDIR=$(dirname "${0}")
 . "${SCRIPTDIR}/ltofunctions" || { echo "Missing '${SCRIPTDIR}/ltofunctions'. Exiting." ; exit 1 ;};
 
 
-unset "${LTO_ARRAY}"
-unset "${LTFS_OPTIONS}"
+unset LTO_ARRAY
+unset LTFS_OPTIONS
 LTO_LOGS="${HOME}/Documents/lto_indexes"
 if [[ -z "${LTO_ARRAY}" ]] ; then
     if [[ $(uname -s) == "Darwin" ]] ; then
-        LTO_ARRAY=($(system_profiler SPSASDataType | grep "SCSI Target Identifier" | cut -d : -f2 | xargs)) # try to figure out how many lto decks are attached
+        LTO_ARRAY=($(system_profiler SPSASDataType | grep "SCSI Target Identifier" | cut -d : -f2 | sort | xargs)) # try to figure out how many lto decks are attached
     else
         LTO_ARRAY=(0) # to do: itemize when there are multiple lto drives in Linux
     fi
diff --git a/writelto b/writelto
index 54b98fb..891931a 100755
--- a/writelto
+++ b/writelto
@@ -6,7 +6,6 @@ TAPE_MOUNT_POINT="/Volumes"
 TAPE_SERIAL_REGEX="[A-Z0-9]\{6\}"
 LTO_LOGS="$HOME/Documents/lto_indexes"
 SCRIPTDIR=$(dirname "${0}")
-. "${SCRIPTDIR}/ltofunctions" || { echo "Missing '${SCRIPTDIR}/ltofunctions'. Exiting." ; exit 1 ;};
 
 _usage(){
     echo "writelto"
@@ -15,6 +14,8 @@ _usage(){
     exit 1
 }
 
+. "${SCRIPTDIR}/ltofunctions" || { echo "Missing '${SCRIPTDIR}/ltofunctions'. Exiting." ; exit 1 ;};
+
 # command-line options
 OPTIND=1
 while getopts ":t:" opt ; do
@@ -24,7 +25,7 @@ while getopts ":t:" opt ; do
         :) echo "Option -${OPTARG} requires an argument" ; exit 1 ;;
     esac
 done
-shift $(( "${OPTIND}" - 1 ))
+shift $(( ${OPTIND} - 1 ))
 
 
 SOURCE_DIR="${1}"