Variable 'c' is a flag, whether to print or not.
This will also print the counts at the end (in random order).
Sorted before fed to awk. Not very elegant, but should work.
You could also combine other filters to achieve this:
Here awk will print the first 3 fields of the duplicates only, sort and uniq will get only single unique occurence, and this is fed to grep to search for all lines containing these strings.
Then you could find the counts like:
cut will extract only first 3 fields, 'uniq -c' will count, and 'grep -v' will filter out those that have count of 1.
Using awk only is more efficient, since you are processing your file only once.
Last edited by mirni; 11-24-2011 at 06:51 AM..
Reason: other filters
Hello,
I am a java programmer but want to try unix for a purpose where I need to reduce a file using its first field.. Here is the sample data:
admin;2;0;;
admission;8;0;;
aman;1;0;;
caroline;0;4;;
cook;0;4;;
cook;2;0;;
far;0;3;;
far;1;5;;
I am explaining the dataset first. There... (5 Replies)
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Example ;
I wanted to join all the lines which has sam to a single line.
In next line, i wanted to have all the lines with jones to a single line....etc
> cat sample.txt
sam 2012/11/23
sam 2012/12/5
sam 2012/12/5
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consider i have two files
cat onlyviews1.sql
CREATE VIEW V11
AS
SELECT id,
name,
FROM
etc etc
WHERE etc etc;
CREATE VIEW V22
AS
SELECT id,
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etc etc
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Hello folks
I have a question for you gurus of sed or grep (maybe awk, but I would prefer the first two)
I have a file (f1) that says:
(actually, these are not numbers but md5sum, but for simplicity, let's assume these numbers.)
1
2
3
4
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1|a
1|b
1|c
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nbk1j7o pageName=/jsp/RMBS/RMBSHome.jsf
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Hi!
I have a trouble with the sort and the uniq.
I know I have to use them, I just have trouble with putting them in the right order.
I have a text file with unsorted lines (each line has a few words, the first word in the line is a number.).
I need to sort this file in order to be... (6 Replies)