FC [/A] [/C] [/L] [/LBn] [/N] [/OFF[LINE]] [/T] [/U] [/W] [/nnnn] [drive1:][path1]filename1 [drive2:][path2]filename2
FC /B [drive1:][path1]filename1 [drive2:][path2]filename2

/A

Displays only first and last lines for each set of differences.

/B

Performs a binary comparison.

/C

Disregards the case of letters.

/L

Compares files as ASCII text.

/LBn

Sets the maximum consecutive mismatches to the specified number of lines.

/N

Displays the line numbers on an ASCII comparison.

/OFF[LINE]

Do not skip files with offline attribute set.

/T

Does not expand tabs to spaces.

/U

Compare files as UNICODE text files.

/W

Compresses white space (tabs and spaces) for comparison.

/nnnn

Specifies the number of consecutive lines that must match after a mismatch.

[drive1:][path1]filename1

Specifies the first file or set of files to compare.

[drive2:][path2]filename2

Specifies the second file or set of files to compare.