linux - : not a valid identifier bash export says

Question

I am trying to run hadoop .I tried these steps -bash: export: `HADOOP_OPTS-Djava.library.path=/home/hdoop/hadoop-3.2.1/lib/nativ': not a valid identifier

followed this steps..

https://phoenixnap.com/kb/install-hadoop-ubuntu

on running source ~/.bashrc getting following error

Answer 1

You're missing the = character between the variable name and its value:

export HADOOP_OPTS="-Djava.library.path=$HADOOP_HOME/lib/nativ"
# Here -----------^