11-22-2006
Help plz
hi ygor,
I have understood the script,but one more issue is that the script is taking more time if my file 1 and file2 exceeds more than 5000 records,
As we are taking file2 in array,what will be limitation of the array.(bcoz in future if my file 2 increased,tats why).
Can u give some tips how to improve the performance.
Regards,
Sukumar.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I have 2 text files n1 and n2.
cat n1 :
--------
1234567890
4444444444
cat n2 :
---------
1234567890
4444444444
7777777777
8888888888
they are some sample records. File n1 contains some lookup records, whereas file n2 contains some transaction records. I need to get the... (2 Replies)
Discussion started by: kanu_kanu
2 Replies
2. Shell Programming and Scripting
I've been trying to use awk to compare two files that have pretty much the same data in apart from certain lines where in one file a fields value has changed. I want to print the line from the first file and the changed line from the second file.
At the moment, all I can get it to do is print the... (6 Replies)
Discussion started by: dbrundrett
6 Replies
3. Shell Programming and Scripting
hi,
i have 1 files a.csv temp.out
a.cvs looks like
add,16390,180,674X,HALIFAX_COMMONS_X,902,497,902-209
add,16390,180,674X,HALIFAX_COMMONS_X,902,497,902-219
add,16390,180,674X,HALIFAX_COMMONS_X,902,497,902-220
add,16390,180,674X,HALIFAX_COMMONS_X,902,497,902-221
and temp.out looks... (1 Reply)
Discussion started by: raghavendra.cse
1 Replies
4. Shell Programming and Scripting
Compare 2 files and print the values input1 (c1 20 100 X_y10) along with one closest highest (c1 100 200 X_y10) and one lowest values (c1 10 15 X_y10) from input2
input1
c1 20 100 X_y10
input2
c1 5 10 X_y10
c1 10 15 X_y10
c1 100 200 X_y10
c1 200 300 X_y10
output
... (8 Replies)
Discussion started by: bumblebee_2010
8 Replies
5. Shell Programming and Scripting
hit brick wall while trying to knock up a script that will take values from the "lookup" file and look it up in the "target" file and return values that dont appear in "target" but do in "lookup".
just knocked up something using bits from previous threads but theres gotta be something wrong... (13 Replies)
Discussion started by: jack.bauer
13 Replies
6. UNIX for Advanced & Expert Users
i have one file say file1 having many records.Each record contains 2000 characters.i have to compare 192-200 (stored as name)characters in this file from other file say file2 having name stored in 1-9 characters.
after comparing i have to print the record from file1 in another file say file3 ... (3 Replies)
Discussion started by: sonam273
3 Replies
7. Shell Programming and Scripting
Hi,
I'm a new user in awk and i'm trying to compare two files to create a third one if some values match in both files.
The first file has this content:
s 45.960746365 _21_ AGT 2490 [21:0 22:0
s 45.980418496 _21_ AGT 2491 [21:0 22:0
s 46.000090627 _21_ AGT 2492 [21:0 22:0
s 47.906552206... (2 Replies)
Discussion started by: carlosoria
2 Replies
8. Shell Programming and Scripting
I've two files with data like below:
file1.txt:
AAA,Apples,123
BBB,Bananas,124
CCC,Carrot,125
file2.txt:
Store1|AAA|123|11
Store2|BBB|124|23
Store3|CCC|125|57
Store4|DDD|126|38
So,the field separator in file1.txt is a comma and in file2.txt,it is |
Now,the output should be... (2 Replies)
Discussion started by: asyed
2 Replies
9. Shell Programming and Scripting
so have file1 like this:
joe 123
jane 456
and then file2 like this:
123 left right
456 up down
joe ding dong
jane flip flop
what I need to do is compare col1 and col2 in file1 with col1 in file2 and generate a new file that has lines like this:
joe 123 ding dong left right
jane... (11 Replies)
Discussion started by: Jaymz
11 Replies
10. UNIX for Dummies Questions & Answers
Hi,
I need to compare two text files with awk.
File1:
-------
chr1 43815007 43815009 COSM19193 REF=TG;OBS=AA;ANCHOR=G AMPL495041
chr1 43815008 43815009 COSM18918 REF=G;OBS=T;ANCHOR=T AMPL495041
chr1 115256527 115256528 ... (6 Replies)
Discussion started by: RushiK
6 Replies
LEARN ABOUT DEBIAN
plan9-join
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 /etc/passwd | join -t: -1 1 -a 1 -e "" - bdays
Add birthdays to the /etc/passwd file, leaving unknown birthdays empty. The layout of /adm/users is given in passwd(5); bdays con-
tains sorted lines like
tr : ' ' </etc/passwd | 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
/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)