By indexing with field $2, a duplicate is overwritten in array s, and further increases the count in array c. Array s simply stores the whole line - it would save some memory to leave out the field $2.
At the end it prints all elements of array s (in a random order) together with the conter in array c (in the same order). The i variable is equal to the field $2 - not printed because s[i] is already the whole line.
For demonstration, here is a variant that consumes less memory but does not print field $3:
Last edited by MadeInGermany; 06-18-2013 at 06:53 AM..
This User Gave Thanks to MadeInGermany For This Post:
Hi,
i'm new here (and to scripting too).
I was hoping for some help in comparing two files.
i have a file called 'file1' with a list of names in the following format:
adam jones
paul higgins
kelly lowe
i also have another file which may contain some of the names but with a lot of... (4 Replies)
Hi, I have two files file1 and file2. I have to merge the columns of those two files into file3 based on common column of two files. To be simple.
file1:
Row-id name1
13456 Rahul
16789 Vishal
18901 Karan
file2 :
Row-id place
18901 Mumbai
... (2 Replies)
Dear Friends,
I really do not know Linux and I really would like to understand it because it does help to work with large data. I am reading this forum for 1 week to try a solution for my problem. I think that, using others post informations, I was almost there...
I have 2 big tables... (4 Replies)
Hi All,
I do have 2 files
file 1 has 4 tab delimited columns
234 a c dfgyu
294 b g fih
302 c h jzh
328 z c san
597 f g son
File 2 has 2 tab delimted columns
234 23
302 24
597 24
I want to merge file 2 with file 1 based on the data common in both files which is the first column so... (6 Replies)
Hi all,
I have created 3 arrays which can have common elements in each like-
arr_a contains str1 str2 str3 str4 str5
arr_b contains str3 str6 str7 str1 str8
arr_c contains str4 str9 str10 str2
each array is created with "set -A arr_name values" command. I want to create a resultant array-say... (1 Reply)
Hi, I am trying to merge information across 2 files. The first file is a "master" file, with all IDS. File 2 contains a subset of IDs of those in File 1.
I would like to match up individuals in File 1 and File 2, and add information in File 2 to that of File 1 if they appear. However, if an... (3 Replies)
Hi
I have file1 as
IJU_NSOMOW;
SOWWOD_TWUIQ;
and file2 as
how are you?;
fine there;
Now my problem is i need the output file as
IJU_NSOMOW; how are you?;
SOWWOD_TWUIQ; fine there; (2 Replies)
HI, I have a 3-column tab separated column (approx 1GB) in which I would like to count and output the frequency of all of the common elements in the 1st column.
For instance:
If my input was the following:
dot is-big 2
dot is-round 3
dot is-gray 4
cat is-big 3
hot in-summer 5
My... (4 Replies)
I would like to merge two tables based on column 1:
File 1:
1 today
1 green
2 tomorrow
3 red
File 2:
1 a lot
1 sometimes
2 at work
2 at home
2 sometimes
3 new
4 a lot
5 sometimes
6 at work (4 Replies)