- IMPORTANT: 
    ** There is already a makefile.
    ** Change 'input1.txt' to filename of choice
    ** Change 'output1.txt' to filename of choice


- COMPILING INSTRUCTIONS:
STEP 1) Type the following:
    make line_processor
STEP 2) Next type:
    ./line_processor


- ALTERNATE COMPILING INSTRUCTIONS (with input file):
STEP 1) Type the following:
    make line_processor
STEP 2) Next type:
    ./line_processor < input1.txt 


- ALTERNATE COMPILING INSTRUCTIONS (with input and output files):
STEP 1) Type the following:
    make line_processor
STEP 2) Next type:
    ./line_processor < input1.txt > output1.txt