/usr/bin/ksh -E

I saw one script using the first line as below
/usr/bin/ksh -E

I have used -x for debug but couldn't find what is this -E option for ?

Pls let me know what is this -E used for

Thanks
RL

-E Reads the file named by the ENV variable or by $HOME/.kshrc if not defined after the profiles. Details are buried deep in the ksh manpage.