01-04-2015
Quote:
Originally Posted by
Gautam Banerjee
... ... ...
Sample i/p files are CNAI_DUMP_raw.txt and paramaters.txt already attached
The output file required is in .csv format. How can I attach it here?
Rather than uploading well over a hundred kilobytes of data, it would be
much better to:
- describe the number of fields, number of bytes / line, and total sizes of your real input and expected output files,
- provide abbreviated (fewer fields and fewer lines, but enough to show the structure of your data) sample input (in CODE tags) in your post instead of hoping that some of the volunteers here have space to burn on the systems they use to try to help you,
- provide sample output corresponding to your sample input (also in CODE tags), and
- describe in English what processing needs to be done to produce the output you want from the input files you have supplied (including case translations, input and output field separators [and when an input file uses space as a field separator and as data in a field, explain how you know which spaces are data and which spaces are separators]).
Don't just show us the code you have written. Explain what it is trying to do and how that relates to producing the output you want. We can help you fill in missing pieces of code once we understand what you're trying to do.
If you absolutely must upload a
.csv file; assuming you have the desired output in a file named
output.csv, move or link it to
output.txt and upload
output.txt.
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JOIN(1) General Commands Manual JOIN(1)
NAME
join - relational database operator
SYNOPSIS
join [ options ] file1 file2
DESCRIPTION
Join forms, on the standard output, a join of the two relations specified by the lines of file1 and file2. If one of the file names is the
standard input is used.
File1 and file2 must be sorted in increasing ASCII collating sequence on the fields on which they are to be joined, normally the first in
each line.
There is one line in the output for each pair of lines in file1 and file2 that have identical join fields. The output line normally con-
sists of the common field, then the rest of the line from file1, then the rest of the line from file2.
Input fields are normally separated spaces or tabs; output fields by space. In this case, multiple separators count as one, and leading
separators are discarded.
The following options are recognized, with POSIX syntax.
-a n In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2.
-v n Like -a, omitting output for paired lines.
-e s Replace empty output fields by string s.
-1 m
-2 m Join on the mth field of file1 or file2.
-jn m Archaic equivalent for -n m.
-ofields
Each output line comprises the designated fields. The comma-separated field designators are either 0, meaning the join field, or
have the form n.m, where n is a file number and m is a field number. Archaic usage allows separate arguments for field designators.
-tc Use character c as the only separator (tab character) on input and output. Every appearance of c in a line is significant.
EXAMPLES
sort /adm/users | join -t: -a 1 -e "" - bdays
Add birthdays to password information, leaving unknown birthdays empty. The layout of is given in users(6); bdays contains sorted
lines like
tr : ' ' </adm/users | sort -k 3 3 >temp
join -1 3 -2 3 -o 1.1,2.1 temp temp | awk '$1 < $2'
Print all pairs of users with identical userids.
SOURCE
/sys/src/cmd/join.c
SEE ALSO
sort(1), comm(1), awk(1)
BUGS
With default field separation, the collating sequence is that of sort -b -ky,y; with -t, the sequence is that of sort -tx -ky,y.
One of the files must be randomly accessible.
JOIN(1)