Am I not understanding the AWK command or typing something wrong? Comparing field 1 from file 1 to field 4 from file 2.
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You were close.
- What are the stars for? Replace by spaces.
- Why did you specify the comma field separator when there's not a single comma in any of your files? Remove, use default.
- Due to the spaces in city names, $4 is not always the zip code in file2. Use $NF.
- file1 should be used to populate the array. Reverse the files.
For your new approach with the zip code in $2, I can't see why it shouldn't work; actually it does for me.
Hi All,
I've two .csv files as below
file1.csv
abc, tdf, 223, tpx
jgsd, tex, 342, rpy
a, jdjdsd, 423, djfkld
Where as file2.csv is the new version of file1.csv with some added fields in the end of each line and some additional lines.
lfj, eru, 98, jkldj, 39, jdkj9
abc, tdf, 223, tpx,... (3 Replies)
EDIT: My problems have been solved thanks to the help of bartus11 and pravin27
This code is just to help me learn. It serves no purpose other than that.
Here's a sample csv that I'm working with -
#listofpeeps.csv
Jackie Chan,1954,M
Chuck Norris,1930,M
Bruce Lee,1940,M
This code is... (13 Replies)
Hi!
I'm just new to shell scripting n simple tasks looks so tough in initial stage. i need to write a script which will read a property file, property file will be containing count of the csv files, and in a folder(same folder) there will be respective csv files.
like Property file
data1=100... (3 Replies)
Hi All,
I want to remove the rows from File1.csv by comparing a column/field in the File2.csv. If both columns matches then I want that row to be deleted from File1 using shell script(awk). Here is an example on what I need.
File1.csv:
RAJAK,ACTIVE,1
VIJAY,ACTIVE,2
TAHA,ACTIVE,3... (6 Replies)
Hello,
I have about 10 csv files which range from csv1 - csv10.
Each csv file has same type/set of tabs and we have around 5-6 tabs for each of the csv file which have slightly different content(data).
A sample of CSV1 is shown below:
Joins: Data related to Joins, it can be any number of... (2 Replies)
Hi All,
My requirement is to write a shell script to compare two large csv files.
I've created sample files for explaining my problem
i.e., a.csv and b.csv
contents of files:
-----------------
a.csv
------
Type,Memory (Kb),Location HD,Size (Mb),Serial #
XT,640,D402,0,MG0010... (2 Replies)
Hi , I want to compare first 3 columns of File A and File B and create a new file File C which will have all rows from File B and will include rows that are present in File A and not in File B based on First 3 column comparison.
Thanks in advance for your help.
File A
A,B,C,45,46... (2 Replies)
Hello all,
I have searched high and low for a solution to this, many have come really close but not quite what I'm after.
I have 2 files. One contains GUID's, for example:
8121E002-96FE-4C9C-BC5A-6AFF20DACECD
84468F30-F3B7-418B-81F0-0908E80792BF
A second file, contains a path to the... (8 Replies)
Discussion started by: tirmUK
8 Replies
LEARN ABOUT FREEBSD
join
JOIN(1) BSD General Commands Manual JOIN(1)NAME
join -- relational database operator
SYNOPSIS
join [-a file_number | -v file_number] [-e string] [-o list] [-t char] [-1 field] [-2 field] file1 file2
DESCRIPTION
The join utility performs an ``equality join'' on the specified files and writes the result to the standard output. The ``join field'' is
the field in each file by which the files are compared. The first field in each line is used by default. There is one line in the output
for each pair of lines in file1 and file2 which have identical join fields. Each output line consists of the join field, the remaining
fields from file1 and then the remaining fields from file2.
The default field separators are tab and space characters. In this case, multiple tabs and spaces count as a single field separator, and
leading tabs and spaces are ignored. The default output field separator is a single space character.
Many of the options use file and field numbers. Both file numbers and field numbers are 1 based, i.e., the first file on the command line is
file number 1 and the first field is field number 1. The following options are available:
-a file_number
In addition to the default output, produce a line for each unpairable line in file file_number.
-e string
Replace empty output fields with string.
-o list
The -o option specifies the fields that will be output from each file for each line with matching join fields. Each element of list
has either the form file_number.field, where file_number is a file number and field is a field number, or the form '0' (zero), repre-
senting the join field. The elements of list must be either comma (',') or whitespace separated. (The latter requires quoting to
protect it from the shell, or, a simpler approach is to use multiple -o options.)
-t char
Use character char as a field delimiter for both input and output. Every occurrence of char in a line is significant.
-v file_number
Do not display the default output, but display a line for each unpairable line in file file_number. The options -v 1 and -v 2 may be
specified at the same time.
-1 field
Join on the field'th field of file1.
-2 field
Join on the field'th field of file2.
When the default field delimiter characters are used, the files to be joined should be ordered in the collating sequence of sort(1), using
the -b option, on the fields on which they are to be joined, otherwise join may not report all field matches. When the field delimiter char-
acters are specified by the -t option, the collating sequence should be the same as sort(1) without the -b option.
If one of the arguments file1 or file2 is '-', the standard input is used.
EXIT STATUS
The join utility exits 0 on success, and >0 if an error occurs.
COMPATIBILITY
For compatibility with historic versions of join, the following options are available:
-a In addition to the default output, produce a line for each unpairable line in both file1 and file2.
-j1 field
Join on the field'th field of file1.
-j2 field
Join on the field'th field of file2.
-j field
Join on the field'th field of both file1 and file2.
-o list ...
Historical implementations of join permitted multiple arguments to the -o option. These arguments were of the form
file_number.field_number as described for the current -o option. This has obvious difficulties in the presence of files named 1.2.
These options are available only so historic shell scripts do not require modification and should not be used.
SEE ALSO awk(1), comm(1), paste(1), sort(1), uniq(1)STANDARDS
The join command conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
BSD July 5, 2004 BSD