How to check a file against a table

hello,
I would like to check a file against a table (file name.dat)

 filename - testfile.abc
 table (file name called ) - checkfile.dat  ( the checkfile.dat would have several file names in it )

If file called testfile.abc is in checkfile.dat then do this or if it does not then do this

would this work,

if [ ` grep -c -f /temp/checkfile.dat $file ` -ne 0 ]
 then
    do something
else
  do someting
fi