How do I install SEP on Linux?

Ubuntu 14.02.   Yep, I'm a noob for Linux.

I've got the install package export on SEPM.  I copied that to the Ubuntu desktop.

I tried this.

chmod 755 install.sh      (no isssues)

sudo sh install.sh      

I get this...

install.sh: 4: install.sh: Bad substitution

Also tried..

https://support.symantec.com/en_US/article.HOWTO10...

(Also brought the .zip file, unzipped it, ran this, no change.)

chmod u+x install.sh

sudo ./install.sh -i

I think that errored out.  And then it saysfolder exists already, nothing written because folder written already....

I'm restarting.  It's updated with apt-get update and upgrade already.