Microsoft File Compare

ling091 2009-1-2

参考： http://en.wikipedia.org/wiki/Microsoft_File_Compare

 

微软的操作系统从MS-DOS 3.30版就有文件比较命令，该命令等同于UNIX系统的命令：comm，cmp和diff。微软的文件比较命令可以比较文本文件或二进制文件，文本 文件可以是ASCII或Unicode编码，比较的结果输出在标准输出上，主要是给人看，难以被其他程序所使用。

 

文件比较命令说明：

fc or comp

Compares two files or sets of files and displays the differences between them.

FC [/A] [/C] [/L] [/LBn] [/N] [/T] [/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.
 /T 	Does not expand tabs to spaces.
 /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.[citation needed



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comp命令和fc命令使用起来并不一样，comp命令只给出文件基本信息的不同之处，如文件大小，而fc命令则会输出文件的不同之处。