If you are not in a *nix environment. This is a perl only oneliner. 
perl -lane '$h{$_}++ for @F; END{print qq{$h{$_} $_\n} for sort keys %
+h}' file

[download]
Switch to double quotes in Windows.
print+qq(\L@{[ref\&@]}@{['@'x7^'!#2/"!4']});

In reply to Re^2: Reporting entries in a file (unix one-liner) by codeacrobat
in thread Reporting entries in a file by SkullOne

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