I have two files: one with list of names (500 entries) and other having some more information for each entry in A.txt and extra entries too.
File A.txt (each line is starting with
> (fasta format) and has spaces, digits and special characters too, but in single line)
>xyz, B=123 >abc, B=231 >mnp, B=567
File B.txt (has some particular information for each entry in A.txt in next line and has extra entries than file A)
>xyz, B=123 01010101010100101 >abc, B=231 1011110000011100000000 >mnp, B=567 10101 >opq, B=678 101010101010101001 >lmn, B=123 101010100000011
>xyz, B=123 01010101010100101 >abc, B=231 1011110000011100000000 >mnp, B=567 10101
I want to grep the entries in list A.txt from list B.txt