Changing RPM Version and Release with rpmrebuild

rpmrebuild.sh

yum install rpmrebuild -y

mkdir output

# If your RPMs do not contain all of the tags defined in this preamble
# then use the --change-spec-preamble flag to modify the preamble.
cat /usr/lib/rpmrebuild/rpmrebuild_rpmqf.src

# Change the RPM's release number to 2. Ignore Distribution and URL.
rpmrebuild -p --notest-install \
    --directory=output \
    --change-spec-preamble='sed -e "s/^Distribution:.*//"' \
    --change-spec-preamble='sed -e "s/^URL:.*//"' \
    --release=2 my-cool-package-1.1_SNAPSHOT-1.noarch.rpm