Code:
> cat file1
'AGI,ABJ,Y,Y,Y,None,EQUATION,ANY,ANY,None,'
'AGI,ABJ,Y,Y,Y,None,EQUATION HEAVY,ANY,ANY,None,'
'AGI,ABJ,Y,Y,Y,None,VARIATION,ANY,ANY,None,'
> cat file2
'GI,ABJ,Y,Y,Y,None,EQUATION,ANY,ANY,None,'
'AGI,ABJ,Y,Y,Y,None,EQUATION HEAVY,ANY,ANY,None,'
'AGI,ABJ,Y,Y,Y,None,VARIATION,ANY,ANY,None,'
> grep -f file2 file1
'AGI,ABJ,Y,Y,Y,None,EQUATION HEAVY,ANY,ANY,None,'
'AGI,ABJ,Y,Y,Y,None,VARIATION,ANY,ANY,None,