Actually, no.
If you look at the desired output provided by the OP it seems that he wants those lines that appear once, and once only.

uniq -d prints duplicated lines, so that will not help him (or her). What he wants is uniq -u

--Darren :)

In reply to Re^2: Read file line by line and check equal lines by McDarren
in thread Read file line by line and check equal lines by Anonymous Monk

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