56 lines
1.4 KiB
Awk
56 lines
1.4 KiB
Awk
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#To: bug-gnu-utils@gnu.org
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#cc: arnold@gnu.org
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#Subject: Possible bug in GNU Awk 3.0.4
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#Date: Wed, 24 Nov 1999 21:47:24 +0000
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#From: Daniel Elphick <de397@ecs.soton.ac.uk>
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#Message-Id: <E11qkG4-0000l0-00@cameron>
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#
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#This is a multipart MIME message.
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#
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#--==_Exmh_-11192982200
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#Content-Type: text/plain; charset=us-ascii
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#
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#
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#When I use the attached awk script unique on the attached data file, it
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#reports that all 4 lines of the data are the same. Using mawk it correctly
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#reports that there are no repeats.
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#
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#I don't know if there are limits on the size of associative array keys for the
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#purposes of reliable indexing but if there is then it is not (obviously)
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#documented.
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#
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#
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#--==_Exmh_-11192982200
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#Content-Type: text/plain ; name="data"; charset=us-ascii
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#Content-Description: data
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#Content-Disposition: attachment; filename="data"
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#
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#322322111111112232231111
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#322322111111112213223111
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#322322111111112211132231
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#322322111111112211113223
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#
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#--==_Exmh_-11192982200
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#Content-Type: text/plain ; name="unique"; charset=us-ascii
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#Content-Description: unique
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#Content-Disposition: attachment; filename="unique"
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#
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{
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if($0 in a)
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{
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printf("line %d has been seen before at line %d\n", NR, a[$0])
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repeat_count += 1
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}
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else
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{
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a[$0] = NR
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}
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count += 1
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}
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END {
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# printf("%d %f%%\n", repeat_count, (float)repeat_count / count * 100)
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printf("%d %f%%\n", repeat_count, repeat_count / count * 100)
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}
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#
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#--==_Exmh_-11192982200--
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