erlang mac os 10.9 卸载脚本

#!/bin/bash

if [ "$(id -u)" != "0" ]; then
echo "Insufficient permissions. Use sudo or root account." 1>&2
exit 1
fi

my_default_prompt=0
if test "$#" != "0"; then
if test "$#" != "1" -o "$1" != "--force"; then
echo "Error: Unknown argument(s): $*"
echo ""
echo "Usage: uninstall.tool [--force]"
echo ""
echo "If the '--force' option is not given, you will be prompted"
echo "for a Yes/No before doing the actual uninstallation."
echo ""
exit 4;
fi
my_default_prompt="Yes"
fi

if test "$my_default_prompt" != "Yes"; then
echo "Do you wish to uninstall EslErlang (Yes/No)?"
read my_answer
if test "$my_answer" != "Yes" -a "$my_answer" != "YES" -a "$my_answer" != "yes"; then
echo "Aborting uninstall. (answer: '$my_answer')".
exit 2;
fi
echo ""
fi

echo "Removing files"

for p in "com.erlang-solutions.Erlang" "com.erlang-solutions.Erlang.Updater"; do

FILES=`/usr/sbin/pkgutil --files ${p} 2>/dev/null`
for s in $FILES; do
if [ -f "/${s}" -o -h "/${s}" ]; then
rm "/${s}" #if s is dir it will not be removed
fi
done

#reverse oreder becouse if dir A has empty dir B then A cannot be removed and when we reverse
#we get the dippest directory first so everything works

DIRS=`/usr/sbin/pkgutil --files ${p} 2>/dev/null --only-dirs | awk '{x = $0 " " x} END {printf "%s", x}'`
for d in $DIRS; do
if [ -d "/${d}" ]; then
rmdir "/${d}" 2>/dev/null
fi
done

echo "Cleaning up"

pkgutil --forget $p 2>/dev/null

done

osascript -e 'tell application "System Events" to delete login item "EslErlangUpdater"' 2>/dev/null

echo "Uninstallation completed"