Bash Deubg Script Cant take credit for this, http://wiki.bash-hackers.org/scripting/debuggingtips thought I would share very useful

debug.sh

#!/usr/bin/env bash
#useage: sh debug.sh mybashscripttodebug.sh

# Very useful bash script debugger produces the funtion name the actual 
# call with variable|value subsitution and line number

color_def="~/.colorrc"

if [[ -f $color_def ]]; then
   . $color_def
else
   # color definitions
   black="$(tput setaf 0)"
   darkgrey="$(tput bold ; tput setaf 0)"
   lightgrey="$(tput setaf 7)"
   white="$(tput bold ; tput setaf 7)"
   red="$(tput setaf 1)"
   lightred="$(tput bold ; tput setaf 1)"
   green="$(tput setaf 2)"
   lightgreen="$(tput bold ; tput setaf 2)"
   yellow="$(tput setaf 3)"
   blue="$(tput setaf 4)"
   lightblue="$(tput bold ; tput setaf 4)"
   purple="$(tput setaf 5)"
   pink="$(tput bold ; tput setaf 5)"
   cyan="$(tput setaf 6)"
   lightcyan="$(tput bold ; tput setaf 6)"
   nc="$(tput sgr0)" # no color
fi
export darkgrey lightgreywhite red lightred green lightgreen yellow blue
export lightblue purple pink cyan lightcyan nc
if [[ ! $lc ]]; then
   lc=$cyan
fi
if [[ ! $sc ]]; then
   sc=$yellow
fi
if [[ ! $lnc ]]; then
   lnc=$red
fi
if [[ ! $fc ]]; then
   fc=$green
fi
if [[ ! $cc ]]; then
   cc=$white
fi
export sc lnc fc

reset_screen() {

   echo $nc
}
reset_screen

usage()
{
cat <<'EOF'

usage: debug [option] script arguments

possilbe options are:
- help|usage: print this screen
- verbose: sets -xv flags
- noexec: sets -xvn flags
- no parameter sets -x flags

EOF
fmt <<EOF
if the script takes arguments remember to enclose the script and arugments
in ""
EOF

fmt <<EOF

The script prints the script name, script line number and function name as it
executes the script. The various parts of the script prompt are printed in
color. If the default colors are not suitable than you can set the environment
varialbes script_color linenum_color funcname_color to any of the following
colors: ${darkgrey}darkgrey$nc, ${lightgrey}light grey$nc, ${white}white,
${red}red, ${lightred}light red, ${green}green, ${lightgreen}light green,
${yellow}yellow, ${blue}blue, ${lightblue}light blue, ${purple}purple,
${pink}pink, ${cyan}cyan, ${lightcyan}light cyan$nc.
EOF

cat <<EOF

default colors are:
${lc}- shell level color:cyan$nc
${sc}- script name: yellow$nc
${lnc}- line number: red$nc
${fc}- function name: green$nc
${cc}- command executed: white'$nc
EOF
}


debug_cmd()
{
   trap reset_screen INT
   /bin/bash $FLAGS $SCRIPT
}

if [ $# -gt 0 ]; then
   case "$1" in
         "verbose")
            FLAGS=-xv
            SCRIPT=$2
         ;;
         "noexec")
            FLAGS=-xvn
            SCRIPT=$2
         ;;
         "help"|"usage")
            usage
            exit 3
         ;;
         *)
            FLAGS=-x
            PS4="${white}${lc}+${sc}"'(${BASH_SOURCE##*/}'":${lnc}"'${LINENO}'"${sc}): ${fc}"'${FUNCNAME[0]}'"(): ${cc}"
            export PS4
            SCRIPT=$1
         ;;
   esac
   debug_cmd
else
   usage
fi

reset_screen