searching contents of files

[Ahmedrhle]

my question here

i have two files a and b.I want to search contents of file a in file b.and the out put to other file which contains only one word after line number.the two files are below:

File a:
5000cca025884d5
5000cca025a1ee6

File b:

0. c0t5000CCA025A1EE6Cd0 <preSUN30G-A2B0-279.40GB>
         /scsi_vhci/disk@g5000cca025a1ee6c
      1. c0t5000CCA025A28FECd0 <preSUN30G-A2B0-279.40GB>
      i/disk@g5000cca025a28fec
      2. c0t5000CCA0258BA1DCd0 <HsdfdsSUN30G-A2B0 cyl 46873 alt 2 hd 20 sec 625>
        i/disk@g5000cca0258ba1dc
      3. c0t5000CCA025884D5Cd0 <UN300G cyl 46873 alt 2 hd 20 sec 625>  solaris
       i/disk@g5000cca025884d5c
      4. c0t5000CCA02592705Cd0 <UN300G cyl 46873 alt 2 hd 20 sec 625>  solaris
       i/disk@g5000cca02592705c