11-07-2013
man join
files must be sorted by key field being joined on.
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Hi,
I have 7 big flat files, each contains 24 million records which have been sorted by the first field delimitered by Ctrl B (002).
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File A:
1^Ba^Bb
2^Bx^By
....
File B:
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2^Bm^Bn
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just wandering if anyone knows what kind of algorithm unix join
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xxxxxxxxx
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zzz
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bbbbbb
ccccc
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So I have 2 files:
File 1:
111,Mike,Stipe
222,Peter,Buck
333,Mike,Mills
File 2:
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444,Mr,Edge
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222,Peter,Buck,Mr,Bono
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Hi,
I am trying to join two simple files but unable to do so properly.
File R1 :
100
101
102
105
.
.
1000
10001
File R2
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102|x2
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10001|a2
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Hi,
I have a unix file which has many lines, i need to join all the lines to single line.
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a
123
45fg
try
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a 123 45fg try
Please help me on this.
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Hello.. I am trying to join two files of about 7000 records. it looked quite straight forward when i began, but i'm not getting the desired output.
here is what i'm trying to do:
cat xxx
item,So,Mo,Tu
aaa,1,1,1
bbb,1,1,4
ccc,1,1,0
ddd,1,1,1
cat yyy
item,Tu,We
aaa,1,1
bbb,4,0... (7 Replies)
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I have 2 files namely branch.txt file & RXD.txt file as below
Ex:Branch.txt
=========================
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B2,Branchname2,city,country
B3,Branchname3,city,country
B4,Branchname4,city,country
B5,Branchname5,city,country
RXD file : will... (11 Replies)
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Dear folks
Hello
I have a one file called (file1) which the structure looks like this
1 gi|358484521|ref|NW_003764373.1|
1 gi|358484520|ref|NW_003764374.1|
1 gi|358484519|ref|NW_003764375.1|
.
.
.
30 gi|368484519|ref|NW_00449375.1|
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Hello All,
I'm working on a Shell script to join data from two files using Join command but not able to get the desired output as its throwing me an error:
I have sorted the two files on the Column 1 numerically which is used as Join clause
File 1:
1,ABC,GGG,20160401
2,XYZ,KKK,20160401... (2 Replies)
Discussion started by: venkat_reddy
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JOIN(1) User Commands JOIN(1)
NAME
join - join lines of two files on a common field
SYNOPSIS
join [OPTION]... FILE1 FILE2
DESCRIPTION
For each pair of input lines with identical join fields, write a line to standard output. The default join field is the first, delimited
by whitespace. When FILE1 or FILE2 (not both) is -, read standard input.
-a FILENUM
print unpairable lines coming from file FILENUM, where FILENUM is 1 or 2, corresponding to FILE1 or FILE2
-e EMPTY
replace missing input fields with EMPTY
-i, --ignore-case
ignore differences in case when comparing fields
-j FIELD
equivalent to `-1 FIELD -2 FIELD'
-o FORMAT
obey FORMAT while constructing output line
-t CHAR
use CHAR as input and output field separator
-v FILENUM
like -a FILENUM, but suppress joined output lines
-1 FIELD
join on this FIELD of file 1
-2 FIELD
join on this FIELD of file 2
--check-order
check that the input is correctly sorted, even if all input lines are pairable
--nocheck-order
do not check that the input is correctly sorted
--header
treat the first line in each file as field headers, print them without trying to pair them
--help display this help and exit
--version
output version information and exit
Unless -t CHAR is given, leading blanks separate fields and are ignored, else fields are separated by CHAR. Any FIELD is a field number
counted from 1. FORMAT is one or more comma or blank separated specifications, each being `FILENUM.FIELD' or `0'. Default FORMAT outputs
the join field, the remaining fields from FILE1, the remaining fields from FILE2, all separated by CHAR. If FORMAT is the keyword 'auto',
then the first line of each file determines the number of fields output for each line.
Important: FILE1 and FILE2 must be sorted on the join fields. E.g., use ` sort -k 1b,1 ' if `join' has no options, or use ` join -t '' '
if `sort' has no options. Note, comparisons honor the rules specified by `LC_COLLATE'. If the input is not sorted and some lines cannot
be joined, a warning message will be given.
AUTHOR
Written by Mike Haertel.
REPORTING BUGS
Report join bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report join translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2011 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
comm(1), uniq(1)
The full documentation for join is maintained as a Texinfo manual. If the info and join programs are properly installed at your site, the
command
info coreutils 'join invocation'
should give you access to the complete manual.
GNU coreutils 8.12.197-032bb September 2011 JOIN(1)