I was an experienched windows user and I made my way out of windows mess.
Now I have Ubuntu but I feel (and I am) like 1000% newbie.
I made the bin executable (chmod +x file) BUT When
spiros@C:~/Desktop$ sh PlaneShift_CBV0.3.019-x86.bin
then
PlaneShift_CBV0.3.019-x86.bin: 1: Syntax error: "(" unexpected
I really need help and information about the md5 command
I really think this a stupid solution but wine will solve my problem

Sry for my bad englih