i have a script that basically just sums up the values of 2 particular columns in a file, grouped by the columns specified as well
The script is quite long, but it's basically just repetitive.. just for each condition.
This script only accepts one type of input file.
Usage of the script:
so basically sample execution would look like this
.:Summation Tool:.
THE MODIFICATION NEEDED:
1. there is an additional input file (2nd file)
- first, there should be a code added to check whether there is a 2ND file
- if there is no 2nd file, just execute the first original script as is
- if there is a 2nd file
- first column needed from this file needs to be
stored to an array to be compared with UPC=$7 which is
coming from the first file
- all those values that match between UPC=$7 and first column
of 2nd file should be "excluded in summation"
(entire line for that match)
- SO, basically, the array from first column of 2nd file needs to
be looped to UPC=$7, to compare each line if there's a match
- those that will match will be stored to a separate new array
- this new array contains the list of values that will be
excluded during summation
if you guys can come up/suggest codes for this, that would be awesome.
i would really appreciate it.
i would also like suggestions, and guide me through the whole process of building it, im quite new to this stuff, so i basically don't know anything,
but i'm willing to learn.
i hope you can all teach me and help me solve this and come up with a
correctly modified script.
Thanks a lot guys! hope to hear from you guys soon.
i really need this script done as soon as possible.
Thanks a lot.
Last edited by Scrutinizer; 08-26-2012 at 04:40 PM..
Reason: code tags
This thread seems to be a follow up to a thread titled HELP with Unix scripts in summing columns in a file posted by ramneim in the Homework & Coursework Questions forum. Therefore, this looks like the next assignment for the same class, but not filed in the homework forum.
no sir, i just need help that's all, and i just want to learn how to this particular modification, and it's a bit different.
i'm just honestly seeking for help from you guys.
---------- Post updated at 01:12 PM ---------- Previous update was at 01:10 PM ----------
hi there, Chubler_XL,
for the code you posted, how shall i add it to my script like this?
and also, do i need to add another argument for the second file?
it's just that, i edited the script, and i don't know how to execute it..
should there be an argument for the second file?
i tried to execute it, but it made me wonder where should i place the second file when i execute the script?
it made me wonder where should i place the second file when i execute the script?
So now you see the problem with using the number of arguments to control your script logic - it makes it hard to add optional parameters later.
How about a slight change to your input parameters...Pass a CSV of column numbers instead of seperate vars eg:
That way we can use argument #4 as the optional exclude filename.
Another advantage here is you end up with only 1 piece of awk logic for all output options:
I've left the parameter validation for you to work on.
Note: that the column titles are hardcoded, you didn't give an example datafile so I'm not sure if the 1st line in the datafile could be used for the output titles or not.
This User Gave Thanks to Chubler_XL For This Post:
Thanks again Chubler_XL for your inputs, i really appreciate it.
so basically, the arguments would be like this:
$1 = ft-gnct-3398-cd-2012-07-07-140112.txt.gz (1st filename)
$2 = " "
$3 = 22,23,1,2,4
$4 = the 2nd filename separated by a space from the $3? , right?
i'm trying to understand each code that you posted, so i apologize if i ask too many questions ok.
so this Begin statement -- it just basically separates the CSV into different columns, right? (will it also split it into different arguments as well?)
Though, i'm not really familiar with the split command, so i'm not sure if i understood it correctly yet...
col_list should have 5 columns right? --> $3 = 22,23,1,2,4
do we need to add in this like this?
and also in these code below:will this take the first column of the second file and compare to $7, which i think is now.. only part of $3 (csv), right?
so in this added code, i'm not quite sure what it does?
for your NOTE in the end: actually the first line/header row in the files (both first and 2nd file) should be skipped when reading the files.
for this added for loop in the last part of the code:
could you kindly enlighten me with this part?
i'm really grateful for all your help.
i hope you have patience in me with this, thanks a lot.
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