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01-27-2008
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There can be some very simple solution to this problem, BUT using awk, this is how we can achieve this
Code:
$ cat file.txt
aaa
b
b
c
c
b
b
I am adding a second field to all lines of file.txt as "1", then using associative array.
$ awk '{print $0,1}' file.txt | awk '{arr[$1]+=$2} END {for (i in arr) {print i,arr[i]}}'
aaa 1
b 4
c 2
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01-27-2008
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Quote:
Code:
awk '{count[$1]++}END{for(j in count) print j,count[j]}'
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