webex ftw - this filename is actually postflight, yet it's inside a flat pkg for EventCenter. Notice the commented-out 'security issue' section, mkdir -p of a parent folder and then the subfolder, and super-odd dylib odd/even math

postflight

#!/bin/sh
#
# This postflight script mv the tmp install location to user home dir 
# 

Logfile=/tmp/.ciscoInstallpostflight.log
dyliblist[9]=xml.dylib
dyliblist[0]=rtp-29.0.0.1.dylib
dyliblist[1]=rtp.dylib
dyliblist[2]=cmcrypto-29.13.0.1.dylib
dyliblist[3]=cmcrypto.dylib
dyliblist[4]=xml-29.0.0.1.dylib
dyliblist[5]=xml.dylib
dyliblist[6]=libssl.0.1.4.7.dylib
dyliblist[7]=libssl.dylib
dyliblist[8]=libcrypto.0.1.4.7.dylib
dyliblist[9]=libcrypto.dylib
PWD=`pwd`
echo "PWD:$PWD" > $Logfile
#find the login users
USERS=`users`

user_dir=~

for user  in $USERS; do
        validuser=$user
        echo "login user:$user" >> $Logfile
done

for user  in $USERS; do
    result=`stat -f '%Su' $user_dir`
    if [ $result == $user ]; then
        validuser=$user
        echo "validuser:$user" >> $Logfile
	fi
done

validgroup=`id -gn $validuser`
echo "validgroup:$validgroup" >> $Logfile


cd "$2"
dest_dir=`pwd`
cd ..
dest_parent_dir=`pwd`
dirlist=`ls`
for dir in $dirlist; do
        if [ $dest_parent_dir/$dir == $dest_dir ]; then
                install_dir_name=$dir
        fi
done

cp_dest_parent_dir=~/Library/Application\ Support/WebEx\ Folder
cp_dest_dir=$cp_dest_parent_dir/$install_dir_name
mkdir -p -m 775 "$cp_dest_parent_dir"
mkdir -p -m 775 "$cp_dest_dir"
chown $validuser:$validgroup "$cp_dest_parent_dir"
chown $validuser:$validgroup "$cp_dest_dir"

if [ -d "$cp_dest_dir" ]; then
	cd "$cp_dest_dir"
	rm -rf `ls "$2"`
fi

cd "$PWD"
cp_plugin_dir=~/Library/Internet\ Plug-Ins

echo "cp_dest_parent_dir:$cp_dest_parent_dir" >> $Logfile
echo "cp_dest_dir:$cp_dest_dir" >> $Logfile
echo "cp_plugin_dir:$cp_plugin_dir" >> $Logfile

rm -rf "$cp_dest_dir"
mv "$2"  "$cp_dest_parent_dir"

rm -rf "$cp_plugin_dir/WebEx64.plugin"
rm -rf "$cp_dest_parent_dir/atgpcext64.bundle"
mv "$cp_dest_dir/WebEx64.plugin" "$cp_plugin_dir"
mv "$cp_dest_dir/atgpcext64.bundle" "$cp_dest_parent_dir"



#dyliblist=`more "$RECEIPT_PATH/dylib.version"`
odd=1
for dylib in ${dyliblist[*]}; do
        echo $dylib
        if [ $odd == 1 ]; then
                v_name=$dylib
                odd=2;
        else
                ln_name=$dylib
                odd=1;
                if [ -f "$cp_dest_dir/$ln_name" ]; then
                        mv "$cp_dest_dir/$ln_name" "$cp_dest_dir/$v_name"
                        ln -s "$cp_dest_dir/$v_name" "$cp_dest_dir/$ln_name"
                fi
        fi
done
##
rm -rf "$cp_dest_dir/Event Center.app"
rm -rf "$cp_dest_dir/asannotation2.app"
rm -rf "$cp_dest_dir/convertpdf.app"

mv "$cp_dest_dir/Event Center" "$cp_dest_dir/Event Center.app"
mv "$cp_dest_dir/asannotation2" "$cp_dest_dir/asannotation2.app"
mv "$cp_dest_dir/convertpdf" "$cp_dest_dir/convertpdf.app"
##
rm -rf /tmp/webex
#security issue
#chmod -R g+w "$cp_dest_dir"
#chmod -R g+w "$cp_plugin_dir/WebEx64.plugin"
#chmod -R g+w "$cp_dest_parent_dir/atgpcext64.bundle"
chown -R $validuser:$validgroup "$cp_dest_dir"
chown -R $validuser:$validgroup "$cp_plugin_dir/WebEx64.plugin"
chown -R $validuser:$validgroup "$cp_dest_parent_dir/atgpcext64.bundle"
exit 0