Hi ya,
I looked up "fc" and "for" in DOS commands but unable to find the solution I desired.

I would want to edit a command into a .bat file that could search a particular field in a line (the line might be of different sequence order) in a .dat file (could be opened up to read as a text file) and compare with another .dat file.

For example, the .dat file would looks something like this :
UsageCounter158555
ConsecutiveCounter0999
AccessoryCounter157333

Any kind soul out there knows if there any DOS command or how am I able to, say compare the "999" field of ConsecutiveCounter between 2 such .dat files and possibly have a return value like 1 or 0 to indicate if the search is successful?

That's a toughie. On Windows, in a command prompt type "help for", that seems like its close to what you want (it can parse each line of an input file and do something with the tokens of that line).

A simple C++ program might be easier, though.