I Need to add 50 different initiator group in vmax

Have a look at the Solutions Enabler Command reference for the symaccess command.

symaccess create -name -file can be used in a for loop pretty easily, something like:

for x in 'list_of_initiator_group_names' do 'symaccess create -name $x -file '

Basically, you want to read in a list of initiator group names from one file, then read in the initiators for that group from a different file.

Or, you could make a file in Excel with the initiator group names in one column, and the initiators in another.  Export the file to text, and you can copy paste at a command line.