Filter only file MM* that containĀ 20111201

egrep -h “\|20111201\|” MM* > file_1

Split file, each file will contain 500000

split -l 50000 file_1 MM_20111201_000000000

Skip any line that start with FH

egrep -v “^FH\|” MM_20111203_000000000_XX.aa > abc

Advertisement