Update install_tool script.

bin/install_tool

@@ -3,6 +3,7 @@
 set -ue
 
 REINSTALL=0
+PACKAGES=1
 
 while getopts -- "-:" a ; do
   case "${a}" in
@@ -11,6 +12,9 @@ while getopts -- "-:" a ; do
       reinstall)
         REINSTALL=1
         ;;
+      no-packages)
+        PACKAGES=0
+        ;;
       *)
         echo "Unknown long option ${OPTARG}" >/dev/stderr
         exit 1
@@ -20,7 +24,6 @@ while getopts -- "-:" a ; do
 done
 
 shift $(($OPTIND-1))
-echo $*
 
 if [ $# -ne 1 ] ; then
   echo "Usage: ${0} <tool>" >/dev/stderr
@@ -29,9 +32,13 @@ fi
 TOOL=${1}
 
 function install_pkgs {
+  if [ ${PACKAGES} -eq 0 ] ; then
+    return 0
+  fi
   if [ `id -u` -ne "0" ] ; then
     sudo apt-get -y install $* || (
-      echo "Unable to install packages, please ensure these are installed." >/dev/stderr
+      echo -n "Unable to install packages, please ensure these " >/dev/stderr
+      echo "are installed, then run with --no-packages." >/dev/stderr
       echo $*
       false )
     return 0

dotfiles/zsh_custom/analyze_new_cluster.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+echo 'This script will generate minimal optimizer statistics rapidly'
+echo 'so your system is usable, and then gather statistics twice more'
+echo 'with increasing accuracy.  When it is done, your system will'
+echo 'have the default level of optimizer statistics.'
+echo
+
+echo 'If you have used ALTER TABLE to modify the statistics target for'
+echo 'any tables, you might want to remove them and restore them after'
+echo 'running this script because they will delay fast statistics generation.'
+echo
+
+echo 'If you would like default statistics as quickly as possible, cancel'
+echo 'this script and run:'
+echo '    "/opt/metasploit-framework/embedded/bin/vacuumdb" --all --analyze-only'
+echo
+
+"/opt/metasploit-framework/embedded/bin/vacuumdb" --all --analyze-in-stages
+echo
+
+echo 'Done'

dotfiles/zsh_custom/delete_old_cluster.sh

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+rm -rf '/home/david/.msf4/db.prev'