checking entries one by one

Shell Programming and Scripting
1

I have a file which has following content:

DATA_OUTPUT_DIRECTORY=/opt/data
MAX_NUMBER_OF_FILES=400
MAX_SIZE_OF_DIRECTORY=2000
ROLLOVER_INTERVAL=0
OUTPUT_DIR_COUNT=MULTIPLE
i want a script which will check one by one entries

2

check entries or values?

3

both values and entries

4

is that all content of that file?

use md5sum to check