why not use the join command to join files? The problem is it only can join on 1 field in each file (default the first field in each file). But after the first join it gets much easier.
After this you only have to keep the lines where field 5 equals field 7, and this is easy with awk. So:
Note: join requires the two files to be sorted on the key fields!
This User Gave Thanks to Ivo Breeden For This Post:
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)
I've got two files, File1 and File2
File 1 has got combination of col1, col2 and col3 which comes on file2 as well, file2 does not get
col4. Now based on col1, col2 and col3, I would like to get col4 from file1 and all the columns from file2 in a new file
Any ideas?
File1
------
Col1 col2... (11 Replies)
Hey,
I have two files that have exactly the same format. They are both tab-delimited and contain 12 columns. However the # of rows vary. What I want to do is match columns # 5,6 and 7 between the two files. If they do match exactly (based on numbers) then I want the whole row from file 2 to... (1 Reply)
foo.txt
1 rs2887286 0 1145994 C T
1 rs1240743 0 1323299 C A
1 rs1695824 0 1355433 G T
1 rs3766180 0 1468016 G A
1 rs7519837 0 1500664 A G
1 rs2272908 0 ... (12 Replies)
Hi to all,
I have two separated files:
FILE1
"V1" "V2" "V3"
Mary James Nicole
Robert Francisco Sophie
Nancy Antony Matt
Josephine Louise Rose
Mark Simon
Charles
FILE2
"V1" "V2" "V3"... (2 Replies)
Hi again,
I have monthly one-column files of roughly around 10 years. Is there a more efficient way to concatenate these files column-wise other than using paste command? For instance:
file1.txt
12
13
15
12
file2.txt
14
15
18
19
file3.txt
20
21 (8 Replies)
Hi,
I need to join two files together with one common value in a column. I think I can use awk or join or a combination but I can't quite get it.
Basically my data looks like this, with the TICKER columns matching up in each file
File1
TICKER,column 1, column, 2, column, 3, column 4
... (6 Replies)
Hello again,
I am trying to join 3rd column of 3 files into the end on one file and save it separately... my data looks like this
file 1
Bob, Green, 80
Mark, Brown, 70
Tina, Smith, 60
file 2
Bob, Green, 70
Mark, Brown, 60
Tina, Smith, 50
file 3
Bob, Green, 50
Mark, Brown,60
Tina,... (6 Replies)
Hello All
I'm joining two files using Awk by Left outer join on the file 1
File 1
1 AA
2 BB
3 CC
4 DD
File 2
1 IND 100 200 300
2 AUS 400 500 600
5 USA 700 800 900 (18 Replies)
Discussion started by: venkat_reddy
18 Replies
LEARN ABOUT OPENDARWIN
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 the either the form 'file_number.field', where file_number is a file number and field is a field number, or the form '0' (zero),
representing the join field. The elements of list must be either comma (``,'') or whitespace separated. (The latter requires quot-
ing 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 file 1.
-2 field
Join on the field'th field of file 2.
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.
DIAGNOSTICS
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 file 1 and file 2.
-j1 field
Join on the field'th field of file 1.
-j2 field
Join on the field'th field of file 2.
-j field
Join on the field'th field of both file 1 and file 2.
-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 shellscripts don't require modification and should not be used.
STANDARDS
The join command conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
SEE ALSO awk(1), comm(1), paste(1), sort(1), uniq(1)BSD April 18, 2002 BSD