04-27-2015
Hi All/Experts,
Let me put my requirement in short and precise, PFB my requirement and issue where I am stuck,
1. In the attached zip file, I want to read the csv files and in the csv files, I want to exclude Header and Trailer record.
2. After excluding Header and Trailer, In column D I want to calculate sum of all rows present under column D and check whether the sum matches with the value present in Trailer record/last record under the same Column D.
3. After doing a match with Trailer record, If the sum matches with trailer record, then simply echo "All Correct" else If the sum does not match with trailer record value under the same column, in our case Column D, then echo "Sum does not match" and exit with return code 16.
4. The entire same process defined in point 1,2,3 needs to be followed for column E,F,G,H,I,J,K,L,M,N,O also.
I hope now the above is clear. For this I have written some code but I don't know unix is behaving differently for each csv file. I execute my code for pf_20150127.csv file sum matches correctly with that of trailer record in the file, When I execute the same code for pf_20150325.csv file sum does not match with trailer record.
For pf_20150325.csv file, Unix is reading the trailer record value with decimal values like XXXXXXXX.00, and my sum I am calculating doesn't have any decimal values.
For pf_20150127.csv file, Unix is reading the trailer record with out decimal values which is quite not understandable to me.
Finally, I am confused and wanted to ask whether this kind of validation mentioned above in points 1,2,3,4 are possible to do in Unix shell scripting or Is there any other way of doing it. Please help me the solution that of shell script only.
With Regards,
TPK
---------- Post updated 04-27-15 at 04:49 AM ---------- Previous update was 04-26-15 at 10:48 PM ----------
Hi All,
Any Updates? Please help me out.
With Regards,
TPK
Last edited by tpk; 04-27-2015 at 12:56 AM..
Reason: Correction
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TOTAL(1) General Commands Manual TOTAL(1)
NAME
total - sum up columns
SYNOPSIS
total [ -m ][ -sE | -p | -u | -l ][ -i{f|d}[N] ][ -o{f|d} ][ -tC ][ -N [ -r ]] [ file .. ]
DESCRIPTION
Total sums up columns of real numbers from one or more files and prints out the result on its standard output.
By default, total computes the straigt sum of each input column, but multiplication can be specified instead with the -p option. Likewise,
the -u option means find the upper limit (maximum), and -l means find the lower limit (minimum).
Sums of powers can be computed by giving an exponent with the -s option. (Note that there is no space between the -s and the exponent.)
This exponent can be any real number, positive or negative. The absolute value of the input is always taken before the power is computed
in order to avoid complex results. Thus, -s1 will produce a sum of absolute values. The default power (zero) is interpreted as a straight
sum without taking absolute values.
The -m option can be used to compute the mean rather than the total. For sums, the arithmetic mean is computed. For products, the geomet-
ric mean is computed. (A logarithmic sum of absolute values is used to avoid overflow, and zero values are silently ignored.)
If the input data is binary, the -id or -if option may be given for 64-bit double or 32-bit float values, respectively. Either option may
be followed immediately by an optional count, which defaults to 1, indicating the number of double or float binary values to read per
record on the input file. (There can be no space between the option and this count.) Similarly, the -od and -of options specify binary
double or float output, respectively. These options do not need a count, as this will be determined by the number of input channels.
A count can be given as the number of lines to read before computing a result. Normally, total reads each file to its end before producing
its result, but this behavior may be overridden by inserting blank lines in the input. For each blank input line, total produces a result
as if the end-of-file had been reached. If two blank lines immediately follow each other, total closes the file and proceeds to the next
one (after reporting the result). The -N option (where N is a decimal integer) tells total to produce a result and reset the calculation
after every N input lines. In addition, the -r option can be specified to override reinitialization and thus give a running total every N
lines (or every blank line). If the end of file is reached, the current total is printed and the calculation is reset before the next file
(with or without the -r option).
The -tC option can be used to specify the input and output tab character. The default tab character is TAB.
If no files are given, the standard input is read.
EXAMPLE
To compute the RMS value of colon-separated columns in a file:
total -t: -m -s2 input
To produce a running product of values from a file:
total -p -1 -r input
BUGS
If the input files have varying numbers of columns, mean values will certainly be off. Total will ignore missing column entries if the tab
separator is a non-white character, but cannot tell where a missing column should have been if the tab character is white.
AUTHOR
Greg Ward
SEE ALSO
cnt(1), neaten(1), rcalc(1), rlam(1), tabfunc(1)
RADIANCE
2/3/95 TOTAL(1)