Compare Fields from two text files using key columns
Hi All,
I have two files to compare. Each has 10 columns with first 4 columns being key index together. The rest of the columns have monetary values.
Using Perl, I want to read one file into hash; check for the key value availability in file 2; then compare the values in the rest of 6 columns; report the differences found.
The files are comman separated and do not have header
Difference found for index abcd,abrd,fun,D000 for field 5,6 and 7
Any help would be appreciated. I am able to come up with the script in Bash, but not very comfortable with the concept of Hash in Perl and also setting up key index columns.
Thanks!
Last edited by vgersh99; 05-12-2010 at 01:10 PM..
Reason: code tags, please!
I am trying to join/paste columns from two files for the rows with matching first field. Any help will be appreciated.
Files can not be sorted and may not have all rows in both files.
Thanks.
File1
aaa 111
bbb 222
ccc 333
File2
aaa sss mmmm
ccc kkkk llll
ddd xxx yyy
Want to... (1 Reply)
Hi Folks,
I need to compare two very huge file ( i.e the files would contain a minimum of 70k records each) using awk or sed. The comparison needs to be done with respect to a 'key'. For example :
File1
**********
1234|TONY|Y75634|20/07/2008
1235|TINA|XCVB56|30/07/2009... (13 Replies)
i have this file which has the following contents:
,-0.3000 ,-0.3000 ,-0.3000
,-0.9000 ,-0.9000 ,-0.9000
i would like to get this:
-0.3-0.9-0.3-0.9-0.3-0.9
so far i am trying:
awk '{for(i=1; i<=NF; i++) {printf("%f\n",$i)}}' test1 > test2
any help... (4 Replies)
HI
I'm having some troubles to compare and permut diffrent fields indexed with another filed like the following example `:
file1
1 1
2 2
3 3
file2
7 1
9 2
10 3
result------------------- (6 Replies)
Hi,
I need the most efficient way of comparing the following and arriving at the result
I have a file which has entries like,
File1:
1|2|5|7|8|2|3|6|3|1
File2:
1|2|3|1|2|7|9|2
I need to compare the entries in these two file with those of a general file,
1|2|3|5|2|5|6|9|3|1... (7 Replies)
Hi,
I have two text files, compare column one in both the files and if it matches then the output should contain the id in column one, the number and the description.
Both the files are sorted. Is there a one liner to get this done, kindly help. Thank you
File 1:
NC_000964 92.33 ... (2 Replies)
I am trying to compare two files (separted by a pipe) using 2 fields (field 1,3 from fileA and 1,2 from fileB) if the two files match i want the whole record of fileA adding the extra fields left from fileB.
1. A.txt
cat|floffy|12|anything|anythings
cat|kitty|15|lala|lalala... (6 Replies)
Hi,
I am trying to check two files based on certain string and field.
cat f1
source=\GREP\"
hi this \\
source=\SED\"
skdmsmd
dnksdns
source=\PERL\"
cat f2
source=\SED\"
source=\GREP\"
vlamskds
amdksk m
source=\AWK\"
awk \here\" (3 Replies)
Hi all, I'm pretty much a newbie to UNIX. I would appreciate any help with UNIX coding on comparing two large csv files (greater than 10 GB in size), and output a file with matching columns.
I want to compare file1 and file2 by 'id' and 'chain' columns, then extract exact matching rows'... (5 Replies)
Hi,
Below are the sample files. x.txt is from an Excel file that is a list of users from Windows and y.txt is a list of database account.
$ head -500 x.txt y.txt
==> x.txt <==
TEST01 APP_USER_PROFILE
USER03 APP_USER_PROFILE
TEST02 APP_USER_EXP_PROFILE
TEST04 APP_USER_PROFILE
USER01 ... (3 Replies)
Discussion started by: newbie_01
3 Replies
LEARN ABOUT DEBIAN
alzabo::runtime::index
Alzabo::Runtime::Index(3pm) User Contributed Perl Documentation Alzabo::Runtime::Index(3pm)NAME
Alzabo::Runtime::Index - Index objects
SYNOPSIS
use Alzabo::Runtime::Index;
DESCRIPTION
This object represents an index on a table. Indexes consist of columns and optional prefixes for each column. The prefix specifies how
many characters of the columns should be indexes (the first X chars). Some RDBMS's do not have a concept of index prefixes. Not all col-
umn types are likely to allow prefixes though this depends on the RDBMS. The order of the columns is significant.
INHERITS FROM
"Alzabo::Index"
Note: all relevant documentation from the superclass has been merged into this document.
METHODS
columns
Returns an ordered list of the "Alzabo::Runtime::Column" objects that are being indexed.
prefix ("Alzabo::Runtime::Column" object)
A column prefix is, to the best of my knowledge, a MySQL specific concept, and as such cannot be set when using an RDBMSRules module for a
different RDBMS. However, it is important enough for MySQL to have the functionality be present. It allows you to specify that the index
should only look at a certain portion of a field (the first N characters). This prefix is required to index any sort of BLOB column in
MySQL.
This method returns the prefix for the column in the index. If there is no prefix for this column in the index, then it returns undef.
unique
Returns a boolean value indicating whether the index is a unique index.
fulltext
Returns a boolean value indicating whether the index is a fulltext index.
function
For function indexes, this returns the function being indexed.
id
The id is generated from the table, column and prefix information for the index. This is useful as a canonical name for a hash key, for
example.
Returns a string that is the id which uniquely identifies the index in this schema.
table
Returns the "Alzabo::Runtime::Table" object to which the index belongs.
AUTHOR
Dave Rolsky, <autarch@urth.org>
perl v5.8.8 2007-12-23 Alzabo::Runtime::Index(3pm)
05-12-2010
and also setting up key index columns.