JAVA J2EE 4 U

 #!/bin/bash

# Usage: ./compare_oracle_patches.sh <OLD_ORACLE_HOME> <NEW_ORACLE_HOME>

OLD_HOME=$1

NEW_HOME=$2

if [[ -z "$OLD_HOME" || -z "$NEW_HOME" ]]; then

  echo "Usage: $0 <OLD_ORACLE_HOME> <NEW_ORACLE_HOME>"

  exit 1

fi

echo "🔍 Comparing patches..."

echo "Old Home: $OLD_HOME"

echo "New Home: $NEW_HOME"

echo "----------------------------------------"

# Temp files

OLD_FILE=$(mktemp)

NEW_FILE=$(mktemp)

# Extract patch list

$OLD_HOME/OPatch/opatch lsinventory | grep "Patch" | sort > $OLD_FILE

$NEW_HOME/OPatch/opatch lsinventory | grep "Patch" | sort > $NEW_FILE

echo "📌 Patches ONLY in OLD (Bespoke Home):"

comm -23 $OLD_FILE $NEW_FILE

echo ""

echo "📌 Patches ONLY in NEW (Standard Home):"

comm -13 $OLD_FILE $NEW_FILE

echo ""

echo "📌 Common patches:"

comm -12 $OLD_FILE $NEW_FILE

# Cleanup

rm -f $OLD_FILE $NEW_FILE

echo "----------------------------------------"

echo "✅ Comparison complete"