diff --git a/tools/arkmanager b/tools/arkmanager
index a6a0e7f..a477210 100755
--- a/tools/arkmanager
+++ b/tools/arkmanager
@@ -2114,254 +2114,263 @@ showUsage() {
 # Main program
 #---------------------
 
-# check the configuration and throw errors or warnings if needed
-checkConfig
+main(){
+  # check the configuration and throw errors or warnings if needed
+  checkConfig
 
-while true; do
-  options=( )
-  allinstances=no
-  instances=( )
-  args=( )
-  command="$1"
-  shift
-  nrarg=0
+  while true; do
+    options=( )
+    allinstances=no
+    instances=( )
+    args=( )
+    command="$1"
+    shift
+    nrarg=0
 
-  # Handle global options
-  case "$command" in
-    --verbose)
-      verbose=1
-      continue
-    ;;
-    --dots)
-      progressDisplayType=dots
-      continue
-    ;;
-    --spinner)
-      progressDisplayType=spinner
-      continue
-    ;;
-    --cronjob)
-      inCronJob=true
-      continue
-    ;;
-  esac
-
-  # get the number of arguments for commands that take arguments
-  case "$command" in
-    installmod) nrarg=1; ;;
-    uninstallmod) nrarg=1; ;;
-    reinstallmod) nrarg=1; ;;
-    broadcast) nrarg=1; ;;
-    rconcmd) nrarg=1; ;;
-    useconfig) nrarg=1; ;;
-    install-cronjob) nrarg=1; ;;
-    remove-cronjob) nrarg=1; ;;
-    remove-mods) nrarg=1; ;;
-  esac
-
-  # Enumerate the options and arguments
-  while [ $# -ne 0 ]; do
-    case "$1" in
-      --)
-        shift
-        break
-      ;;
-      --args)
-        nrarg=$#
-      ;;
+    # Handle global options
+    case "$command" in
       --verbose)
         verbose=1
+        continue
       ;;
       --dots)
         progressDisplayType=dots
+        continue
       ;;
       --spinner)
         progressDisplayType=spinner
+        continue
       ;;
-      --*)
-        options+=( "$1" )
+      --cronjob)
+        inCronJob=true
+        continue
       ;;
-      @all)
-        allinstances=yes
-      ;;
-      @*)
-        instances+=( "${1#@}" )
-      ;;
-      *)
-        if [ $nrarg -gt 0 ]; then
-          args+=( "$1" )
-	  (( nrarg-- ))
-        else
+    esac
+
+    # get the number of arguments for commands that take arguments
+    case "$command" in
+      installmod) nrarg=1; ;;
+      uninstallmod) nrarg=1; ;;
+      reinstallmod) nrarg=1; ;;
+      broadcast) nrarg=1; ;;
+      rconcmd) nrarg=1; ;;
+      useconfig) nrarg=1; ;;
+      install-cronjob) nrarg=1; ;;
+      remove-cronjob) nrarg=1; ;;
+      remove-mods) nrarg=1; ;;
+    esac
+
+    # Enumerate the options and arguments
+    while [ $# -ne 0 ]; do
+      case "$1" in
+        --)
+          shift
           break
+        ;;
+        --args)
+          nrarg=$#
+        ;;
+        --verbose)
+          verbose=1
+        ;;
+        --dots)
+          progressDisplayType=dots
+        ;;
+        --spinner)
+          progressDisplayType=spinner
+        ;;
+        --*)
+          options+=( "$1" )
+        ;;
+        @all)
+          allinstances=yes
+        ;;
+        @*)
+          instances+=( "${1#@}" )
+        ;;
+        *)
+          if [ $nrarg -gt 0 ]; then
+            args+=( "$1" )
+            (( nrarg-- ))
+          else
+            break
+          fi
+        ;;
+      esac
+      shift
+    done
+
+    # handle non-instance separately
+    case "$command" in
+      upgrade-tools)
+        doUpgradeTools
+        exit
+      ;;
+      uninstall-tools)
+        doUninstallTools
+        exit
+      ;;
+      useconfig)
+        defaultinstance="${args[0]}"
+        continue
+      ;;
+      remove-mods)
+        doRemoveMods "${args[0]}"
+        if [ $# -eq 0 ]; then
+          exit 0
+        else
+          continue
         fi
       ;;
-    esac
-    shift
-  done
-
-  # handle non-instance separately
-  case "$command" in
-    upgrade-tools)
-      doUpgradeTools
-      exit
-    ;;
-    uninstall-tools)
-      doUninstallTools
-      exit
-    ;;
-    useconfig)
-      defaultinstance="${args[0]}"
-      continue
-    ;;
-    remove-mods)
-      doRemoveMods "${args[0]}"
-      if [ $# -eq 0 ]; then
-        exit 0
-      else
-        continue
-      fi
-    ;;
-    list-instances)
-      doListAllInstances "${options[@]}"
-      exit
-    ;;
-    --version)
-      echo "Version: ${arkstVersion}"
-      echo "Channel: ${arkstChannel}"
-      if [ -n "${arkstCommit}" ]; then
-        echo "Commit: ${arkstCommit:0:7}"
-      fi
-      blobsize="$(sed "s@^arkstCommit=.*@arkstCommit=''@" "$0" | wc -c)"
-      echo "Blob SHA: $( (echo -ne "blob ${blobsize}\0"; sed "s@^arkstCommit=.*@arkstCommit=''@" "$0") | sha1sum | cut -d' ' -f1)"
-      exit 1
-    ;;
-    -h|--help)
-      showUsage
-      exit 1
-    ;;
-    "")
-      echo "arkmanager v${arkstVersion}: no command specified"
-      showUsage
-      exit 1
-    ;;
-  esac
-
-  # Handle no instances being specified
-  if [[ "${#instances[@]}" == 0 && "$allinstances" == "no" ]]; then
-    if [ -n "$defaultinstance" ]; then
-      instances=( "$defaultinstance" )
-    else
-      echo "No instances supplied for command ${command} ${options[*]} ${args[*]}"
-      read -p "Do you wish to run this command for all instances?" -n 1 -r
-      echo
-      if [[ "$REPLY" =~ ^[Yy]$ ]]; then
-        allinstances=yes
-      else
+      list-instances)
+        doListAllInstances "${options[@]}"
+        exit
+      ;;
+      --version)
+        echo "Version: ${arkstVersion}"
+        echo "Channel: ${arkstChannel}"
+        if [ -n "${arkstCommit}" ]; then
+          echo "Commit: ${arkstCommit:0:7}"
+        fi
+        blobsize="$(sed "s@^arkstCommit=.*@arkstCommit=''@" "$0" | wc -c)"
+        echo "Blob SHA: $( (echo -ne "blob ${blobsize}\0"; sed "s@^arkstCommit=.*@arkstCommit=''@" "$0") | sha1sum | cut -d' ' -f1)"
         exit 1
+      ;;
+      -h|--help)
+        showUsage
+        exit 1
+      ;;
+      "")
+        echo "arkmanager v${arkstVersion}: no command specified"
+        showUsage
+        exit 1
+      ;;
+    esac
+
+    # Handle no instances being specified
+    if [[ "${#instances[@]}" == 0 && "$allinstances" == "no" ]]; then
+      if [ -n "$defaultinstance" ]; then
+        instances=( "$defaultinstance" )
+      else
+        echo "No instances supplied for command ${command} ${options[*]} ${args[*]}"
+        read -p "Do you wish to run this command for all instances?" -n 1 -r
+        echo
+        if [[ "$REPLY" =~ ^[Yy]$ ]]; then
+          allinstances=yes
+        else
+          exit 1
+        fi
       fi
     fi
-  fi
 
-  # Handle all instances being requested
-  if [[ "$allinstances" == "yes" ]]; then
-    instances=( $(getAllInstanceNames) )
-  fi
+    # Handle all instances being requested
+    if [[ "$allinstances" == "yes" ]]; then
+      instances=( $(getAllInstanceNames) )
+    fi
 
-  # Run the command for each instance requested
-  for instance in "${instances[@]}"; do
-  (
-    echo "Running command '${command}' for instance '${instance}'"
-    useConfig "$instance"
-    checkConfig
-
-    case "$command" in
-      run)
-        doRun
-      ;;
-      start)
-        doStart "${options[@]}"
-      ;;
-      stop)
-        doStop shutdown "${options[@]}"
-      ;;
-      restart)
-        doStop restart "${options[@]}"
-        echo "`timestamp`: stop" >> "$logdir/$arkmanagerLog"
-      ;;
-      cancelshutdown)
-        doCancelShutdown "${options[@]}"
-      ;;
-      install)
-        doInstall
-      ;;
-      update)
-        doUpdate "${options[@]}"
-      ;;
-      checkupdate)
-        checkForUpdate
-      ;;
-      installmod)
-        doInstallMod "${args[@]}"
-      ;;
-      uninstallmod)
-        doUninstallMod "${args[@]}"
-      ;;
-      reinstallmod)
-        doUninstallMod "${args[@]}"
-        doInstallMod "${args[@]}"
-      ;;
-      backup)
-        doBackup
-      ;;
-      broadcast)
-        doBroadcast "${args[@]}"
-      ;;
-      saveworld)
-        doSaveWorld
-      ;;
-      rconcmd)
-        rconcmd "${args[@]}"
-      ;;
-      status)
-        printStatus
-      ;;
-      install-cronjob)
-        doInstallCronJob "${args[@]}" "${options[@]}"
-      ;;
-      remove-cronjob)
-        doRemoveCronJob "${args[@]}"
-      ;;
-      *)
-        echo -n "arkmanager v${arkstVersion}: unknown command '$command' specified"
-        showUsage
-        exit 255
-      ;;
-    esac
-  )
-  laststatus=$?
-  if [ $laststatus -eq 255 ]; then
-    exit 1
-  elif [ $laststatus -ne 0 ]; then
-    status=$laststatus
-  fi
-  done
-
-  # Perform the restart portion of the restart command
-  if [[ "$command" == "restart" ]]; then
-    sleep 1
+    # Run the command for each instance requested
     for instance in "${instances[@]}"; do
     (
+      echo "Running command '${command}' for instance '${instance}'"
       useConfig "$instance"
-      doStart "${options[@]}"
-      echo "`timestamp`: start" >> "$logdir/$arkmanagerLog"
-      echo "`timestamp`: restart" >> "$logdir/$arkmanagerLog"
+      checkConfig
+
+      case "$command" in
+        run)
+          doRun
+        ;;
+        start)
+          doStart "${options[@]}"
+        ;;
+        stop)
+          doStop shutdown "${options[@]}"
+        ;;
+        restart)
+          doStop restart "${options[@]}"
+          echo "`timestamp`: stop" >> "$logdir/$arkmanagerLog"
+        ;;
+        cancelshutdown)
+          doCancelShutdown "${options[@]}"
+        ;;
+        install)
+          doInstall
+        ;;
+        update)
+          doUpdate "${options[@]}"
+        ;;
+        checkupdate)
+          checkForUpdate
+        ;;
+        installmod)
+          doInstallMod "${args[@]}"
+        ;;
+        uninstallmod)
+          doUninstallMod "${args[@]}"
+        ;;
+        reinstallmod)
+          doUninstallMod "${args[@]}"
+          doInstallMod "${args[@]}"
+        ;;
+        backup)
+          doBackup
+        ;;
+        broadcast)
+          doBroadcast "${args[@]}"
+        ;;
+        saveworld)
+          doSaveWorld
+        ;;
+        rconcmd)
+          rconcmd "${args[@]}"
+        ;;
+        status)
+          printStatus
+        ;;
+        install-cronjob)
+          doInstallCronJob "${args[@]}" "${options[@]}"
+        ;;
+        remove-cronjob)
+          doRemoveCronJob "${args[@]}"
+        ;;
+        *)
+          echo -n "arkmanager v${arkstVersion}: unknown command '$command' specified"
+          showUsage
+          exit 255
+        ;;
+      esac
     )
+    laststatus=$?
+    if [ $laststatus -eq 255 ]; then
+      exit 1
+    elif [ $laststatus -ne 0 ]; then
+      status=$laststatus
+    fi
     done
-  fi
 
-  if [ $# -eq 0 ]; then
-    break
-  fi
-done
+    # Perform the restart portion of the restart command
+    if [[ "$command" == "restart" ]]; then
+      sleep 1
+      for instance in "${instances[@]}"; do
+      (
+        useConfig "$instance"
+        doStart "${options[@]}"
+        echo "`timestamp`: start" >> "$logdir/$arkmanagerLog"
+        echo "`timestamp`: restart" >> "$logdir/$arkmanagerLog"
+      )
+      done
+    fi
+
+    if [ $# -eq 0 ]; then
+      break
+    fi
+  done
+
+  exit $status
+}
+
+# Only execute main function if script is not being sourced
+# by another script
+if [[ "$(caller)" =~ ^0 ]]; then
+  main "$@"
+fi
 
-exit $status