Linux command to add a word after a specific line

we need to add the line <property name="assumeHungTime" value="600000" />

after the line <bean id="DataUnpacker" class="com-packer" singleton="false">

in one xml file . Please let me know the command to add it – using sed?

Thanks, Ravikanth

Answer

The follwing sed command will do what you want.

sed -e '/<bean id="DataUnpacker" class="com-packer" singleton="false">/a<property name="assumeHungTime" value="600000" />'