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annotate bin/uniq_merge.py @ 136:f30a1b268cea

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author Henry S. Thompson <ht@inf.ed.ac.uk>
date Wed, 21 Jul 2021 20:04:11 +0000
parents 464d2dfb99c9
children f5e2211b50bd
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Henry S. Thompson <ht@inf.ed.ac.uk>
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1 #!/usr/bin/env python3
Henry S. Thompson <ht@inf.ed.ac.uk>
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2 # Merge counts by key from the output of "uniq -c" and sort in descending order
Henry S. Thompson <ht@inf.ed.ac.uk>
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3 # An alternative to sus when the scale is too big for the initial sort, or if uniq -c already does a lot
Henry S. Thompson <ht@inf.ed.ac.uk>
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4 # of the work
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5 # Usage: ... | uniq -c | uniq-merge.py
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6 import sys
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7 s={}
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8 for l in sys.stdin:
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9 (i,d)=l.split()
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10 i=int(i)
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11 if d in s:
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12 s[d]+=i
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13 else:
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14 s[d]=i
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15 for (d,n) in sorted(s.items(),key=lambda j:j[1],reverse=True):
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16 print('%5d\t%s'%(n,d))