Write a shell script which can read a DNA sequence

Database (48) Accounting (39) Economics (34) Finance (54) Programming (122) Management (69) Marketing (25) Report Writing (52) Engineering (79) Statistics (39) Business Studies(45) Case Studies (15) Networking (26) UML (9) Science (23) Nursing (11) MATLAB (17) Psychology (6) Math (20) Data Structure (9) Python (15) HRM (25) IT (21) Computer Science (57) Law (4) Essay (3) Data Analysis (2) Big Data (3) Philosophy (2) History (1)