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# 8  
Old 10-08-2009
slightly changed solution of "thegeek"

$ cat
# put all the ip into a hash as key, and counts as value.
while(<>)  {
    $hash{$1}++ if /^([^ ]*)/;
# print the hash.
map { print "$_ matches $hash{$_}\n" } sort {$hash{$a} <=> $hash{$b}} keys %hash;

$ perl sample matches 1 matches 1 matches 2 matches 3 matches 4

# 9  
Old 10-08-2009
Originally Posted by steadyonabix
I think this needs an infile

Like the indexing of the array, very nice
awk '{a[$1]++}END{for(i in a)print i" matches "a[i]}' infile |sort -k3,3nr | head -10

# 10  
Old 10-08-2009
Big thanks for so many solutions Smilie

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