Changes in .bash_profile file results in issues with bash commands


While learning Kafka videos , I inserted below two lines in .bash_profile file.
export KAFKA_HOME=/usr/hdp/
export PATH

Now the bash shell is not functioning properly

[sadiqueahsan@gw02 flume_demo]$ ls -lrth
bash: ls: command not found…

Please help!
My user-id is sadiqueahsan


It has been resolved the export command was wrongly written due to which bash commands were not accessible .
The same has been resolved now and bash is working fine.