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Re: keep only unique elements in an array displaying number of duplicates.

by Laurent_R (Canon)
on Aug 24, 2014 at 20:23 UTC ( [id://1098472]=note: print w/replies, xml ) Need Help??

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  1. or download this
    $ echo '
james     yes
...
dave    2
jon     4
ken     1
  2. or download this
    perl -nE 'my ($name, $val) = (split)[0,4]; $hash{$name} ++ if $val eq 
+"yes"; END{ say "$_\t$hash{$_}" for keys %hash}'

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