Script to compare installed RPMs between two servers using ssh and the rpm command.

rpmdb-compare

#!/bin/sh

test -n "$TMPDIR" || TMPDIR=/tmp
tmpfilebase="$TMPDIR/rpmdb-compare.$$"

if test $# -ne 2
then
	echo "Usage: $0 [user@]server1 [user@]server2" >&2
	echo "Special name localhost means this server, without ssh" >&2
	exit 1
fi

for i in "$@"
do
	tmpfile="$tmpfilebase.$i"
	if test $i = localhost
	then
		rpm -qa --qf '%{NAME}.%{ARCH}\n' | sort > $tmpfile
	else
		ssh $i "rpm -qa --qf '%{NAME}.%{ARCH}\n'" | sort > $tmpfile
	fi
done

echo "RPMs in $1 only:"
comm -23 "$tmpfilebase.$1" "$tmpfilebase.$2"

echo
echo "RPMs in $2 only:"
comm -13 "$tmpfilebase.$1" "$tmpfilebase.$2"

rm -f "$tmpfilebase.$1" "$tmpfilebase.$2"

Its better if you mention how to use.

Thanks for writing this script!
Simple and easy to use for comparing the differences of rpm installed on two systems.

@nomankhn1 save the script as rpmdb, make it executable, then ./rpmdb user@servA user@servB
It will prompt for user@servA pw and user@servB pw, then it will list packages in servA and packages in servB