Count Number of Occurrences in a File 2

[Guest_imported]

Hi There!
Could someone help me out on this? For Example, I have a file which contain the details as shown below:

ABCD
BCDE
DEFG
BCDE
ABCD
ABCD
DEFG

How Can I Sort this File out such that I have the following output counting the number of occurences of the particular line in the file:

ABCD 3
BCDE 2
DEFG 2

Thanks A lot!

Regards,
klstra

 

[FredrikN]

Take a look at the uniq command

 

[vgersh99]

BEGIN {
}

{ arr[$0]++ }

END {
for (i in arr)
printf("%s%s%s\n", i, FS, arr);
}

 

[nolaRon]

I know this is the awk forum but don't forget that if you are on a unix box the command "uniq" will do the same thing for you (if you first sort it). uniq -c or some such option.