Hi, I am having three different files. 'File1.c' is written in C language , 'File2.cpp' is written in C++ language and 'File3.dat' is a datafile(say Ascii). On Unix when I try to test the file type without opening the file using the command 
file File1.c

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The answaer is 
File1.c: ascii text

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It is the same for all three files. Then I wrote a perl script checking whether any C type comments(/* */) or C++ comments(//) existing. Is there any betterway(any perl function) to check the file belongs to which language C/C++ or a textfile without opening it? 
Thanks
Ashok

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In reply to file type by ashok

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