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I would like to use Ruby to check if each of several thousand pairs of files contain identical information. Could someone point me in the right direction?
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Probably the easiest way to compare two files is to use the diff command. The output will show you the differences between the two files. The < and > signs indicate whether the extra lines are in the first (<) or second (>) file provided as arguments.
The way to recognize a hard link is to look at the second field in a long file listing. If it's a "1", the file has no hard links. If it's 2 or greater (and not a directory), the same file exists somewhere else in the file system.
require 'fileutils'
FileUtils.compare_file('file1','file2')
returns true if and only if files file1 and file2 are identical.
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